Look up Ioannes in Wiktionary, the free dictionary.
Ioannes is a given name. Notable people with the name include:
- Ioannes (fl. 423–425), a Roman usurper
- Ioannes Kegen, a Pecheneg military commander
- Ioannes I (disambiguation)
- Ioannes II (disambiguation)
- Ioannes III (disambiguation)
- Ioannes IV (disambiguation)
- Ioannes V (disambiguation)
- Ioannes VI (disambiguation)
- Ioannes VII (disambiguation)
- Ioannes VIII (disambiguation)