- articles in 1911 Encyclopædia Britannica:
- Mononymous Alexanders
- "Alexander (prince of Bulgaria)," in Encyclopædia Britannica (11th ed., 1911)
- "Alexander (rhetorician)," in Encyclopædia Britannica (11th ed., 1911)
- "Alexander (despot)," in Encyclopædia Britannica (11th ed., 1911)
- "Alexander (popes)," in Encyclopædia Britannica (11th ed., 1911)
- "Alexander (king of Servia)," in Encyclopædia Britannica (11th ed., 1911)
- "Alexander (king)," in Encyclopædia Britannica (11th ed., 1911)
- Alexander, king of Poland (1461–1506)
- Alexander, king of Servia [i.e. Serbia] (Alexander Obrenovich) (1876–1903)
- Alexander, prince of Bulgaria (Alexander of Battenberg) (1875–1893)
- Alexander, Greek rhetorician (fl. 2nd century a.d.)
- Alexander of Aphrodisias (fl. c. a.d. 200), Greek commentator on the writings of Aristotle
- Alexander of Hales (Alexander Halensis) (fl. 13th century), English theologian
- Alexander the Paphlagonian (fl. 2nd century a.d.), celebrated imposter and worker of false oracles
- Alexander of Pherae, a Thessalian despot (r. 369–358 b.c.)
- Alexander of Tralles (Alexander Trallianus) (fl. c. a.d. 550), Greek physician
- Alexander I., pope (r. c. 106–115)
- Alexander I., emperor of Russia (Aleksander Pavlovich) (1777–1825)
- Alexander I., king of Epirus (fl. c. 342 b.c.), king of Epirus
- Alexander I., king of Scotland (c. 1078–1124)
- Alexander II., pope (Anselmo Baggio) (r. 1061–1073)
- Alexander II., emperor of Russia (1818–1881)
- Alexander II., king of Epirus (fl. c. 272 b.c.), king of Epirus
- Alexander II., king of Scotland (1198–1249)
- Alexander III., pope (Orlando Bandinelli) (r. 1159–1181)
- Alexander III., emperor of Russia (1845–1894)
- Alexander III., king of Scotland (1241–1285)
- Alexander IV., pope (Rinaldo) (r. 1254–1261)
- Alexander V., pope (Peter Philargès) (r. 1409–1410)
- Alexander VI., pope (Rodrigo Borgia) (1431–1503)
- Alexander VII., pope (Fabio Chigi) (r. 1655–1667)
- Alexander VIII., pope (Pietro Ottoboni) (r. 1689–1691)
- Alexander Aetolus of Pleuron (fl. c. 280 b.c.), Greek poet
- Alexander Balas, king of Syria (r. 150–146 b.c.)
- Alexander Cornelius Polyhistor (fl. c. 70 b.c.), Greek grammarian
- Alexander Jannaeus, king of the Jews (r. 103–76 b.c.)
- Saint Alexander Nevsky (1220–1263), grand-duke of Vladimir
- Alexander Severus (Marcus Aurelius Severus Alexander) (208–235), Roman emperor
- surnames for figures with the given name Alexander
Authors