People starting with A
1,197,682 records.
- Alexander N. FedorovArtist
- Alexander N. Gelfanhydrologist
- Alexander N. Naumenkobotanist
- Alexander N. Poltavskyentomologist, ORCiD ID=0000-0002-1613-0710
- Alexander N. RossolimoAmerican businessman
- Alexander N. StreltzovRussian entomologist
- Alexander N. Tashevbotanist
- Alexander N. TimokhaUkrainian mathematician
- Alexander N. UglizkichRussian (Soviet) botanist (1876–19??)
- Alexander Nabbennon-fiction writer
- Alexander Nabertjournalist, historian of science
- Alexander NabiullinPortuguese dancer
- Alexander Nabutovskymathematician
- Alexander Nachamarabbi
- Alexander NadasHungarian-American pediatric cardiologist
- Alexander NaddourAmerican gymnast
- Alexander NadiradzeSoviet engineer (1914–1987)
- Alexander NadjSwedish footballer
- Alexander NadsonBelarusian Apostelic Visitor (1926–2015)
- Alexander NagelGerman civil servant and politician (1925-2012)
- Alexander NagelAmerican mathematician and academic
- Alexander NagolkinRussian scientist and inventor
- Alexander NagyCzechoslovak soccer player (1944-2010)
- Alexander NagySlovak water polo player
- Alexander Nahum SackAmerican philosopher (1890–1955)
- Alexander NairneBritish priest
- Alexander NanauRomanian-born German film director
- Alexander NandzikGerman footballer
- Alexander NansenNorwegian lawyer (1862-1945)
- Alexander Nanta LinggiMalaysian politician
- Alexander NapierVicar of Holkham and rector of Egmere. Translator and editor, notably of Boswell
- Alexander NapierScottish politician and diplomat (died c. 1473)
- Alexander Napier, 1st of MerchistounPeerage person ID=539503
- Alexander Napier, Lord Laurieston(died 1629)
- Alexander NashEnglish footballer (1849-1906)
- Alexander NasmythBritish artist based in Edinburgh (1758-1840)
- Alexander Naterresearcher
- Alexander Nathansohnbotanist (1878-1940)
- Alexander NatskyRussian geologist
- Alexander NaumannGerman chess player
- Alexander NaumannGerman chemist and university teacher (1837-1922)
- Alexander NaumovRussian artist (1935-2010)
- Alexander NaveenB.Com in Accountancy (Commerce) from Osmania Unversity, Hyderabad
- Alexander NavrotskyRussian poet and writer (1839-1914)
- Alexander NawrockiGerman politician
- Alexander Nazarovhero of the Soviet Union (1925–1945)
- Alexander NazarovRussian mathematician
- Alexander NderituKenyan writer
- Alexander NdoumbouGabonese footballer
- Alexander Nebrigliterary scholar
- Alexander Neckamscholar and abbot of Cirencester
- Alexander Nede
- Alexander NedorezkovRussian serial killer
- Alexander NedoshivinRussian Esperantist
- Alexander NeefGerman opera director
- Alexander NefzgerAustrian pianist
- Alexander Nehamasprofessor of philosophy
- Alexander NehrAustrian blacksmith (1855-1928)
- Alexander NeibaurAmong the first dentist to practice in Utah, and one of the first Jewish persons to join LDS Church.
- Alexander Neidhardtauthor
- Alexander NeidleinGerman politician
- Alexander Neil McDonaldCanadian politician
- Alexander Neil McLeanCanadian politician (1885–1967)
- Alexander Neill SomervilleFree Church of Scotland minister and evangelist
- Alexander NejedlýSlovak firefighter
- Alexander NeklessaRussian political scientist
- Alexander NekrasovRussian politician
- Alexander Nekrasov
- Alexander NekrichRussian historian (1920–1993)
- Alexander NelchaVenezuelan basketball player (born 1968)
- Alexander NelkeEstonian-American artist (1894-1974)
- Alexander NelsonBritish athlete
- Alexander NelsonBritish Army general (1814–1893)
- Alexander Nelson HansellBritish architect
- Alexander NemeczAustrian politician (1905–1981)
- Alexander Nemerovart historian
- Alexander Nemetssoldier, engineer
- Alexander NemilovSoviet historian
- Alexander NemtinRussian composer (1936–1999)
- Alexander NemukhinRussian chemist
- Alexander NemytarevRussian swimming coach
- Alexander NepoteAmerican painter (1913–1986)
- Alexander NeratAustrian politician
- Alexander NerlichGerman director
- Alexander NersesyanSoviet and Georgian theoretical physicist and mathematician
- Alexander NesbittBritish antiquarian and scholar on glass (1817-1886)
- Alexander Nesisfounder, president and CEO of the ICT Group
- Alexander NesmeyanovSoviet chemist specializing in organometallic chemistry
- Alexander NesterovRussian ice hockey player
- Alexander Nesterovmilitary officer, military personnel
- Alexander NeuGerman politician (Die Linke)
- Alexander Neubacherjournalist
- Alexander NeubauerAustrian ice hockey player
- Alexander NeubertGerman public servant (1862-1945)
- Alexander NeuerAustrian physician and psychoanalyst
- Alexander NeuhuberAustrian politician
- Alexander NeumannAustrian architect (1861-1947)
- Alexander NeumannRussian painter
- Alexander NeumannAustrian entrepreneur, composer and president of the Vienna Chess Club
- Alexander NeumeisterGerman industrial designer
- Alexander NeumüllerAustrian wrestler
- Alexander NeuperAustrian association football player
- Alexander Neupert-Dopplerpolitical scientist, philosopher
- Alexander NeverovRussian and Soviet writer (1886–1923)
- Alexander NevilleArchbishop of York from 1374 to 1388
- Alexander NevilleEnglish politician and scholar
- Alexander Nevolin-SvetovRussian Paralympic swimmer
- Alexander Nevskypolitical and military figure of Kievan Rus' (1246–1263)
- Alexander NevzorovSoviet-Russian journalist, film director and writer (1958-)
- Alexander Newlandscivil engineer
- Alexander NewleyBritish artist
- Alexander NewmanAmerican politician (1804-1849)
- Alexander Newton WinchellAmerican geologist and mineralogist (1874-1958)
- Alexander NeyAmerican artist
- Alexander NezlobinRussian director and actor
- Alexander NicholsonAustralian police officer, Chief Commissioner of Victoria Police
- Alexander Nicol Anton WaddellBritish colonial administrator
- Alexander Nicolai Julius von ReinBaltic German teacher (1830-1903)
- Alexander Nicolaus SchererGerman chemist (1771-1824)
- Alexander Nicolaus Tolckemitauthor, historian
- Alexander Nicollorientalist (1793-1828)
- Alexander Nicolsonteacher
- Alexander NicolsonScottish lawyer, Gaelic scholar and mountaineer
- Alexander NiculescuAmerican psychiatrist
- Alexander NiednerGerman judge (1862-1930)
- Alexander Niehaus
- Alexander Niehueschurch musician
- Alexander Niemanngenealogist, engineer
- Alexander NiemetzSwiss television presenter, journalist and news presenter
- Alexander NijeboerDutch journalist
- Alexander Nikanorovich NovoskoltsevRussian painter
- Alexander Nikanorovich ZuevSoviet Russian writer & journalist
- Alexander NikiforovRussian architect
- Alexander Nikiforovresearcher
- Alexander NikiforowFinnish police officer
- Alexander NikishinRussian ice hockey player
- Alexander Nikitich Yesenin
- Alexander NikitinRussian politician
- Alexander NikitinRussian architect
- Alexander NikitinRussian environmentalist
- Alexander NiklitschekAustrian writer and photographer (1892–1953)
- Alexander NikolaevRussian diplomat
- Alexander NikolaevichRussian statesperson (1902-1987)
- Alexander Nikolaevich Bushuyevcolonel in the Russian Armed Forces (1974-2016)
- Alexander Nikolaevich Derzhavin
- Alexander Nikolaevich DeutschSoviet astronomer
- Alexander Nikolaevich DinnikPh.D. Vasyl Karazin Kharkiv National University 1915
- Alexander Nikolaevich Lungupalaeontologist
- Alexander Nikolaevich Molchanovwriter, journalist
- Alexander Nikolaevich Naumenko
- Alexander Nikolaevich Naumovzoologist
- Alexander Nikolaevich Nikitin
- Alexander Nikolaevich Orlovpaleontologist, zoologist
- Alexander Nikolaevich Povalo-Shveikovskymilitary personnel
- Alexander Nikolaevich Rykov
- Alexander Nikolaevich SheldyayevRussian politician
- Alexander Nikolaevich SinitsynHero of the Soviet Union (1913–1991)
- Alexander Nikolaevich Sokolovarchitect
- Alexander Nikolaevich StepanovRussian painter
- Alexander Nikolaevich TitovRussian botanist and lichenologist (1959-2008)
- Alexander Nikolaevich Veryovkin
- Alexander Nikolaevich Volkovavant-garde Russian painter and poet The most famous works: “The Pomegranate Teahouse”, “Caravan”, “
- Alexander Nikolaevich YakovlevSoviet diplomat (1923-2005)
- Alexander Nikolaevich ZelentsovSoviet and Kazakhstani football player
- Alexander NikolaiAustrian politician
- Alexander Nikolai Julius von Baltzrussian HQ lieutenant general
- Alexander Nikolai Schmidt-LebuhnGerman botanist (1976 - )
- Alexander Nikolaievich GolubevRussian architect (1909-1998)
- Alexander Nikolaievich TereninRussian physicist (1896-1967)
- Alexander Nikolaus BorsowBaltic German painter (1854-1895)
- Alexander NikolayevHero of the Soviet Union (1918-2009)
- Alexander Nikolayevice hockey player (1966-)
- Alexander Nikolayevich AbazaRussian diplomat (1872-1925)
- Alexander Nikolayevich AlexeyevskyRussian politician (1878-1957)
- Alexander Nikolayevich Baldenkovcardiologist, physician
- Alexander Nikolayevich DudnikovRussian railway worker
- Alexander Nikolayevich EngelhardtRussian chemist (1832-1893)
- Alexander Nikolayevich LebedevRussian biochemist (1869–1937)
- Alexander Nikolayevich Panovdiplomat
- Alexander Nikolayevich PetrovRussian footballer
- Alexander Nikolayevich SamokhvalovRussian painter and draughtsman during the Soviet era (1894–1971)
- Alexander Nikolayevich ZavaritskyRussian geologist and volcanologist (1884-1952)
- Alexander NikolovBulgarian poet
- Alexander Nikolovpolitician in Bulgaria
- Alexander Nikolovboxer
- Alexander NikolskySoviet architect (1884-1953)
- Alexander NikolskyRussian composer
- Alexander NikolskyRussian zoologist (1858-1942)
- Alexander Nikonovmilitary personnel
- Alexander NikulinRussian ice hockey player
- Alexander NikuradseGeorgian–German physicist and political scientist (1900–1981)
- Alexander NilskyRussian actor (1840–1899)
- Alexander NilsonSwedish television presenter
- Alexander NilssonSwedish association football player (born 1990)
- Alexander NilssonSwedish association football player (born 1997)
- Alexander NilssonSwedish footballer
- Alexander NilssonSwedish politician
- Alexander NimmoIrish architect and engineer
- Alexander NisbetAmerican judge (1777-1857)
- Alexander NisbetScottish heraldist
- Alexander NisbetBritish surgeon (1795–1874)
- Alexander Nisbet(died 1644)
- Alexander Nisbet PatersonBritish painter and architect, 1862-1947
- Alexander NiscoveanuBritish artistic gymnast
- Alexander NitinrajITI NTC in Automobile Engineering from Prof ps chowdaryiti, Gulbarga
- Alexander NitzbergRussian-German-Austrian writer and translator (born 1969)
- Alexander NixBritish businessman
- Alexander NixonRomanian Noble
- Alexander Noak
- Alexander Nobismodern pentathlete
- Alexander Noble Burnslepidopterist, entomologist
- Alexander Nogtevsoveit security official
- Alexander Noinetspolitician, blogger
- Alexander NoldeBaltic German legal scholar (1873-1919)
- Alexander NollGerman politician
- Alexander NollenbergerGerman footballer
- Alexander Nolteracing automobile driver
- Alexander NordkvistSwedish athletics competitor
- Alexander Nordstein
- Alexander Nordvik
- Alexander NorwayBsc CE in IT and Marketing from International Business School, Philippine
- Alexander NorénSwedish professional golfer
- Alexander NorénSwedish writer and journalist
- Alexander Nos
- Alexander NosatovRussian naval officer
- Alexander NosenkoUkrainian chess player
- Alexander Noskovsoviet major general
- Alexander NottebohmDutch Rink hockey player
- Alexander NouriGerman footballer and manager
- Alexander NovakDeputy Prime Minister of Russian Federation for Fuel Energy Complex
- Alexander Novakovicbeach handball player
- Alexander NoveBritish historian of the economy of the Soviet Union (1915-1994)
- Alexander NovikawBelarusian politician
- Alexander NovikovSoviet mathematician
- Alexander Novkinmilitary personnel
- Alexander NovotnyAustrian historian (1906-1986)
- Alexander NovozhilovSoviet ice hockey player
- Alexander NowellEnglish theologian and clergyman (1517–1602)
- Alexander NoyesAmerican musician, drummer and percussionist
- Alexander NudelmanSoviet engineer, aircraft guns designer (1912–1996)
- Alexander NumanDutch physician
- Alexander Numeniusancient Greek rhetorician
- Alexander NunezCanadian actor and writer
- Alexander NunnerAustrian basketball player (born 1985)
- Alexander Nuno AlvaroGerman politician
- Alexander Nurizade
- Alexander NussAustrian biathlete
- Alexander NworaNigerian basketball player and coach
- Alexander NyboDanish footballer
- Alexander NyhagenNorwegian journalist
- Alexander NylanderCanadian ice hockey player
- Alexander NyströmFinnish architect
- Alexander Nyulassypainter (1840–1903)
- Alexander NákóHungarian noble, politician (1785-1848)
- Alexander NätterlundSwedish singer
- Alexander NørgaardDanish swimmer
- Alexander NübelGerman association football player
- Alexander NützelGerman paleontologist and university teacher
- Alexander NützenadelGerman university teacher
- Alexander O'ConnorFijian politician
- Alexander O'Donovan ShielIrish businessperson
- Alexander O'HandleyCanadian politician
- Alexander O'NealAmerican musical artist
- Alexander O. AndersonUnited States Army soldier (1794–1869)
- Alexander O. AverianovRussian paleontologist, zoologist
- Alexander O. BabcockAmerican politician
- Alexander O. Shirleycricketer (1927-2016)
- Alexander O. SmithAmerican translator and author
- Alexander O. Vargasresearcher (ORCID 0000-0002-2009-7116)
- Alexander O. VietorAmerican map scholar (1913–1981)
- Alexander OakesBritish businessman and co-founder of SCL Group
- Alexander OberRussian architect and restorer (1835-1898)
- Alexander OberAustrian racing driver
- Alexander Oberlin MackellarBritish Guiana-born surgeon
- Alexander OblingerGerman ice hockey player
- Alexander ObolenskyEnglish rugby union footballer (1916–1940)
- Alexander Obolenskypolitician
- Alexander OborinA. A. Oborin
- Alexander ObregónColombian footballer (1977-2009)
- Alexander ObukhovSoviet Russian physicist and applied mathematician (1918–1989)
- Alexander ObutRussian paleontologist
- Alexander OdoevskyRussian poet (1802–1839)
- Alexander OelzeGerman handball player
- Alexander Oetkertelevision journalist, writer
- Alexander OeyDutch film director (born 1960)
- Alexander of Abingdon
- Alexander of AbingdonEnglish sculptor
- Alexander of AbonoteichusGreek mystic and oracle (c. 105 – c. 170)
- Alexander of AcarnaniaSeleucid general; abandoned Philip V of Macedon insinuated himself into the favor of Antiochus III t
- Alexander of Aegaeancient Greek philosopher
- Alexander of Alexandriaancient Greek olympics victor in stadion
- Alexander of Apamea5th-century bishop of Apamea
- Alexander of ArgyllScottish magnate
- Alexander of AshbyEnglish theologian
- Alexander of AthensAthenian poet of New Comedy
- Alexander of BattenbergBulgarian ruler (1857–1893)
- Alexander of Bergamopatron saint of Bergamo, Capriate San Gervasio, and Cervignano d'Adda
- Alexander of Beroeamilitary personnel
- Alexander of BurgundyLord of Montaigu
- Alexander of CanterburyEnglish monk of Christ Church, Canterbury
- Alexander of Carthage
- Alexander of Comanabishop of Comana in Pontus(died c. 251)
- Alexander of ConstantinopleBishop of Byzantium and the first bishop of Constantinople
- Alexander of Corinthtyrant of Corinth
- Alexander of CotiaeumGreek grammarian
- Alexander of CourlandGerman prince (1658-1686)
- Alexander of Cyprus6th-century Cypriot monk
- Alexander of Damascusphilosopher
- Alexander of Foignylegendary prince, Cistercian/Trappist monk and Christian saint (-1229)
- Alexander of GreeceKing of Greece (1917–1920)
- Alexander of HalesEnglish Franciscan theologian and philosopher (c.1185-1245)
- Alexander of Hierapolisbishop of Hierapolis in Phrygia
- Alexander of Hierapolis5th-century Bishop of Hierapolis
- Alexander of Islay, Earl of RossScottish nobleman and Lord of the Isles
- Alexander of JerusalemChristian bishop and saint
- Alexander of Judaea1st-century BC Jewish noble and rebel against Rome
- Alexander of Jumiègesauthor
- Alexander of JülichRoman Catholic bishop
- Alexander of LincolnBishop of Lincoln
- Alexander of Lycopolisancient philosopher
- Alexander of Lyncestis4th-century BC Greek general
- Alexander of Magnesiaepigrammatist of the Greek Anthology
- Alexander of Mangup
- Alexander of Megalopolis2nd-century BC ancient Macedonian
- Alexander of MontenegroEuropean braggart, self claimed to be the Son of Ottoman Sultan Mehmed III
- Alexander of Myndusancient Greek writer
- Alexander of Paphusmythographer
- Alexander of ParisFrench poet
- Alexander of Pheraedespot of Pherae in Thessaly 369 BC - 358 BC
- Alexander of Phocis3rd-century BC Greek governor
- Alexander of Rhodes1st-century BC Greek admiral
- Alexander of RoesGerman Catholic priest and canon law jurist
- Alexander of Romecanon
- Alexander of RomeChristian martyr
- Alexander of Rome
- Alexander of San Elpidiobishop of the Roman Catholic Church
- Alexander of Solms-Braunfels(1807-1867)
- Alexander of Suzdalprince (1300-1331)
- Alexander of Telesechronicler
- Alexander of Thessalonikipriest
- Alexander of Thessaloniki
- Alexander of Tralleseminent ancient physician
- Alexander of TrebizondCo-emperor of Trebizond
- Alexander of Trichonium3rd-century BC Greek general
- Alexander of Via ClaudiaRoman martyr bishop
- Alexander of VilledieuFrench mathematician
- Alexander of WürttembergArmy officer (1801-1844)
- Alexander Og MacDonaldScottish noble
- Alexander OgandoDominican athletics competitor
- Alexander Oganovich ChubarianSoviet historian
- Alexander OgemudiaEMIB in international business from bachelor, Cologne
- Alexander Ogemudiainternatinal business in Business Administration from The American College, cologne
- Alexander OgilviRussian hidrogeologist
- Alexander Ogilvygrandson of Princess Alexandra, The Honourable Lady Ogilvy
- Alexander Ogilvy, 6th Lord Banff(1718-1746)
- Alexander Ogilvy, 7th Lord BanffScottish nobleman
- Alexander OgleAmerican politician (1766-1832)
- Alexander OgomudiaNigerian general
- Alexander OgorodnikovRussian dissident
- Alexander OgorodnikowBelarusian ski jumper
- Alexander OgrincGerman association football player
- Alexander OgstonBritish surgeon (1844–1929)
- Alexander Ohgrentable tennis player
- Alexander Ohm-JanuschowskyAustrian teacher and writer
- Alexander OjanneSwedish politician
- Alexander Okolicsányidiplomat
- Alexander Okswriter (1871-1832)
- Alexander OkunIsraeli artist, author and educator (1949–2025)
- Alexander OkyereB.Arch in Pharmacy, Raebareli
- Alexander OlarovskyRussian diplomat (1845–1910)
- Alexander OlbrichGerman diplomat
- Alexander OlbrichGerman stage actor
- Alexander OlbrichtGerman painter (1876-1942)
- Alexander Olchwriter, Director, Designer (born 1977)
- Alexander Olcott19th century American politician
- Alexander OldysBritish novelist and poet (1636-1708)
- Alexander Olegovich BerestetskiyRussian mycologist
- Alexander Olegovich Frolovbotanist
- Alexander Olegovich MazarovichRussian geologist
- Alexander Olegowitsch MilaninNordic combined skier
- Alexander OlekGerman biochemist
- Alexander OleshkoRussian actor and TV presenter
- Alexander OlevskiiRussian-Israeli mathematical analyst
- Alexander OligerovRussian painter
- Alexander OllongrenDutch scientist
- Alexander OlsenNorwegian football player (1899-1975)
- Alexander Olsen SyversenNorwegian ice hockey player
- Alexander OlshanetskyJewish-American composer, conductor, and violinist
- Alexander Olshanski
- Alexander Olssonjournalist
- Alexander OlszewskiBulgarian diplomat
- Alexander OltmansDutch painter (1814-1853)
- Alexander OltropDutch speed skater
- Alexander OnischukUkrainian-American chess player
- Alexander Onofridirector
- Alexander OnslowAustralian Chief Justice (1842–1908)
- Alexander OnufrievUkrainian screenwriter
- Alexander OparinSoviet biochemist (1894-1980)
- Alexander Oparinbandy player
- Alexander OpekushinRussian sculptor (1838–1923)
- Alexander Opokuassociation football player
- Alexander OppenheimGerman jurist and photographer (1819-1898)
- Alexander OppenheimBritish mathematician (1903–1997)
- Alexander OpplerGerman sculptor (1869–1937)
- Alexander Oraevskyresearcher
- Alexander OrbelianiGeorgian writer (1802–1869)
- Alexander OrdonezIngenieria Informatica from Universidad Nacional Autónoma de México, Mexico City or Ciudad de México
- Alexander OrleyAmerican racing automobile driver
- Alexander Orlovarchitect
- Alexander OrlovSoviet spy (1895–1973)
- Alexander OrlovRussian statistician and seismologist (1840-1889)
- Alexander OrlovSoviet ice hockey player
- Alexander Orlovartist (1899-1979)
- Alexander OrlovRussian diplomat
- Alexander OrlovRussian set designer
- Alexander OrlowTobacco executive and art curator (1918-2009)
- Alexander OrmeIrish Anglican cleric
- Alexander Ormiston CurleScottish archaeologist and museum leader (1866–1955)
- Alexander OrmstonEnglish footballer (1919-1975)
- Alexander OroBsc CE in Mathematics from Technological Institute of the Philippines, Marikina
- Alexander OrozChilean footballer
- Alexander Orr, Jr.American politician
- Alexander Orregoassociation football player
- Alexander Ort
- Alexander Ortiz GutiérrezPeruvian taekwondoin
- Alexander OsNorwegian biathlete
- Alexander Osadchyice hockey player
- Alexander OsangGerman journalist and writer
- Alexander OsayemiAmerican sprinter (born 2007)
- Alexander OsborneAmerican rower
- Alexander OscarDanish singer
- Alexander Oscar Gettler(1883-1968) Hungarian American toxicologist
- Alexander Oscar LevyAmerican artist, 1881-1947
- Alexander Oshevenskiymonk
- Alexander OsinRussian ice hockey player
- Alexander Osintsevracing driver, racing automobile driver
- Alexander OsipenkoRussian ice hockey player
- Alexander OsipovEstonian scientist (1911-1967)
- Alexander Osipovich KoritskiiRussian painter (1818-1866)
- Alexander Osipovich Tarassovbotanist
- Alexander OsipovitchBelarusian basketball coach
- Alexander Oskar HolversonTitanic victim
- Alexander Oskar NoahGerman painter (1885-1968)
- Alexander OsmerkinRussian artist (1892-1953)
- Alexander OsmininRussian musician
- Alexander Osokinbandy player
- Alexander OsolinRussian graphic artist
- Alexander OspeltLiechtensteiner lawyer
- Alexander OspinaIngenieria de Sistemas in Desarrollo de software from San Mateo, Bogota
- Alexander Ospina BedoyaIngeniero de telecomunicaciones, Bogota or Bogotá
- Alexander OssovskyMusicologist, Russian writer (1871-1957)
- Alexander OstenGerman jurist (1839-1898)
- Alexander OsterbergerAustrian architect (1877 - 1946)
- Alexander OsterothGerman actor
- Alexander OsterwalderSwiss business theorist
- Alexander OstovskyRussian architect
- Alexander Ostroukhovice hockey player (1989-)
- Alexander OstroumovRussian pharmaceutical chemist
- Alexander OstrovskyRussian playwright (1823-1886)
- Alexander OstrovskyRussian boxer
- Alexander OstrowskiRussian mathematician (1893–1986)
- Alexander OstuzhevRussian actor (1874–1953)
- Alexander OswaldScottish landowner and lawyer
- Alexander Oswald BrodieAmerican military officer and politician (1849-1918)
- Alexander OtaolaCuban-American actor and activist
- Alexander OtreyAustrian artist
- Alexander OtroshchenkovBelarusian journalist and activist
- Alexander OtsukaJapanese professional wrestler and mixed martial artist
- Alexander Otsupphotographer
- Alexander Ottwriter and songwriter (1908-1978)
- Alexander Ottivich BurkivskyUkrainian army officer (1874–1921)
- Alexander OttoAustrian diplomat
- Alexander OttoGerman footballer
- Alexander OttoGerman manager
- Alexander OttoGerman theatre director
- Alexander Otto AepliSwiss politician (1870-1921)
- Alexander Otto Benz
- Alexander Otto Ehrströmfarmer, politician
- Alexander Otto Hermann (Alexander Grigor'evich) von Bilderling20 Apr 1805 - uncertain 8 Dec 1873
- Alexander Otto Magnus von Essen1829-1888
- Alexander Otto StichartGerman painter (1838-1896)
- Alexander Otto von Velenmilitary officer, military personnel
- Alexander Otto WeberGerman author
- Alexander Otto Wilgelm von Kranichfeldjurist, teacher
- Alexander OusteanScottish tailor and member of Edinburgh burgh council
- Alexander OutlawAmerican politician
- Alexander OvchinnitovSoviet military
- Alexander OvechkinSoviet mechanical engineer
- Alexander OvechkinRussian ice hockey player
- Alexander OverwijkCanadian math teacher
- Alexander OwenOwen, Alexander (1851–1920), brass-band trainer
- Alexander OwensIrish barrister, High Court judge since 2019
- Alexander OxenfordEnglish politician
- Alexander Oxholm(1844-1908)
- Alexander OzerskyRussian geologist (1813-1880)
- Alexander Ozhegovarchitect in Perm, Russia (1871-1904)
- Alexander Pruler005, Chidambaram
- Alexander P. AndersonUS botanist and inventor (1862-1943)
- Alexander P. AnkenyAmerican Businessman
- Alexander P. CrittendenAmerican politician (1816-1870)