John Doukas, Latinized as Ducas (Greek: Ἰωάννης Δούκας, romanized: Iōannēs Doúkas) is the name of several Byzantine aristocrats and their descendants. It may refer to any of the following:
- John Doukas (Caesar) (fl. 1074–1088), brother of Emperor Constantine X Doukas
- John Doukas (megas doux) (c. 1064 – before 1136), brother-in-law of Alexios I Komnenos
- John Doukas (megas hetaireiarches) (fl. 1155–1181), military commander and diplomat
- John Doukas (sebastokrator) (c. 1126 – c. 1200), uncle of Emperors Isaac II Angelos and Alexios III Angelos
- John Doukas Komnenos (1128–1176)
- John III Doukas Vatatzes (1193–1254), Emperor of Nicaea 1222–1254
- John Komnenos Doukas (d. 1244), ruler of Thessalonica and Thessaly 1237–1244
- John Doukas (son of Michael II), son of Michael II of Epirus, hostage in Constantinople
- John I Doukas of Thessaly, ruler of Thessaly 1268–1289
- John II Doukas of Thessaly, ruler of Thessaly 1303–1318
- John II Orsini (also called Doukas), ruler of Epirus 1323–1335
- John Uroš, ruler of Thessaly 1370–1373
Topics referred to by the same termThis disambiguation page lists articles about people with the same name. If an internal link led you here, you may wish to change the link to point directly to the intended article. Category: