Ioannou or Joannou (Greek: Ιωάννου) is a Greek surname.
Notable people with surname Ioannou:
Men
- Dakis Joannou, Cypriot industrialist
- Demetris Ioannou, Cypriot footballer
- Fifis Ioannou, 2nd Secretary General of AKEL
- Giorgos Ioannou, Greek author
- John Ioannou, Greek-Canadian actor
- Kyriakos Ioannou, Cypriot high jumper
- Kyriacos Ioannou, Cypriot footballer
- Memos Ioannou, Greek basketball player
- Nicky Ioannou, British footballer
- Orthodoxos Ioannou, Cypriot footballer
- Yiannos Ioannou, Cypriot footballer
- Stathis Ioannou, Greek dj
Women
- Eleni Ioannou, Greek judo athlete
- Susan Ioannou, Canadian poet
See also
- Joannou & Paraskevaides, Middle East contractor