Ioannis
Ioannis or Ioannes, shortened to Giannis or Yannis is a Greek given name cognate with Johannes and John. Notable people with the name include:
- Ioannis Alevras, Greek politician
- Ioannis Amanatidis, Greek footballer
- Ioannis Antetokounmpo, commonly known as Giannis Antetokounmpo, Greek basketball player
- Ioannis Bourousis, Greek basketball player
- Ioannis Drymonakos, Greek swimmer
- Ioannis Gagaloudis, Greek basketball player
- Ioannis Kakridis, Greek classical scholar
- Ioannis Kalitzakis, Greek footballer
- Ioannis Kapodistrias, Greek politician in Russia
- Ioannis Kasoulidis, Cypriot politician
- Ioannis Kolettis, Greek politician who served as Prime Minister of Greece
- Ioannis Limnios-Sekeris, Greek historian and humanitarian
- Ioannis Metaxas, Greek general and politician
- Ioannis Okkas, Cypriot football player
- Ioannis Paraskevopoulos, Greek banker and politician
- Ioannis Plagis, Southern Rhodesian flying ace during World War II
- Ioannis Rallis, Greek politician
- Ioannis Samaras, Greek footballer
- Ioannis Sfairopoulos, Greek basketball coach
- Ioannis Tamouridis, Greek cyclist
- Ioannis Theofilakis, Greek shooter
- Ioannis Theotokis, Greek politician who became Prime Minister of Greece
- Ioannis Leobrera - commonly known as Yanis Lumban, Laguna
