Ioannes is a given name. Notable people with the name include: *

Ioannes Joannes or John ( la, Iohannes; died 425) was western Roman emperor from 423 to 425. On the death of the Emperor Honorius (15 August 423), Theodosius II, the remaining ruler of the House of Theodosius, hesitated in announcing his uncle's dea ...

( fl. 423–425), a Roman usurper *

Ioannes Kegen Ioannes Kegen was a Pecheneg military commander who served under khan Tyrach in 1048, whose quarrel led to the Pecheneg revolt of 1048-1053. Kegen and his followers took refuge in Paristrion and appealed to Byzantine emperor Constantine IX Mono ...

, a Pecheneg military commander *

Ioannes I (disambiguation) Ioannes I ( el, Ἰωάννης A΄, "John I") may refer to: * Patriarch John I of Constantinople (c. 347–407) * John I Tzimiskes (c. 925–976), Byzantine Emperor * John I Doukas of Thessaly John I Doukas ( gr, Ἰωάννης Δούκας, ...

Ioannes II (disambiguation) Ioannes II ( el, Ἰωάννης Β΄, "John II") may refer to: * Patriarch John II of Constantinople (ruled 518–520) * John II Komnenos (1087–1143), Byzantine emperor * John II of Trebizond (c. 1262–1297) * John II Doukas of Thessaly (rule ...

Ioannes III (disambiguation) Ioannes III ( el, , ''Iōannēs G΄'') may refer to: * Patriarch John III of Constantinople (died in 577) * John III Doukas Vatatzes John III Doukas Vatatzes, Latinized as Ducas Vatatzes ( el, Ιωάννης Δούκας Βατάτζης, '' ...

Ioannes IV (disambiguation) Ioannes IV ( el, , ''Iōannēs D΄'') may refer to: * Patriarch John IV of Constantinople (died in 595) * John IV, Archbishop of Ohrid (c. 1088 – 1163/64) * John IV Laskaris John IV Doukas Laskaris (or Ducas Lascaris) ( el, Ἰωάννης ...

Ioannes V (disambiguation) Ioannes V ( el, , ''Iōannēs E) may refer to: * Patriarch John V of Constantinople (ruled 669–675) * John V Palaiologos John V Palaiologos or Palaeologus ( el, Ἰωάννης Παλαιολόγος, ''Iōánnēs Palaiológos''; 18 Jun ...

Ioannes VI (disambiguation) Ioannes VI ( el, , ''Iōannēs ST΄'') may refer to: * John VI of Constantinople (Patriarch from 712 to 715) * John VI Kantakouzenos (c. 1292–1383) * Pope John VI :''Pope John VI can also refer to Pope John VI of Alexandria.'' Pope John VI ( ...

Ioannes VII (disambiguation) Ioannes VII ( el, , ''Iōannēs Ζ) may refer to: * Patriarch John VII of Constantinople (mid-9th century) * Emperor John VII Palaiologos John VII Palaiologos or Palaeologus ( el, Ἰωάννης Παλαιολόγος, Iōánnēs Palaioló ...

Ioannes VIII (disambiguation) Ioannes VIII ( el, , ''Iōannēs Ē) may refer to: * Patriarch John VIII of Constantinople (r. 1064–1065) * John VIII Palaiologos, Byzantine Emperor (1392–1448) See also * John VIII (disambiguation) John VIII may refer to: * Pope John VII ...