| Ioannis Georgallis | |
| League: | Greek Basket League |
| Position: | Assistant coach |
| Height Ft: | 6 |
| Height In: | 6.75 |
| Weight Lb: | 230 |
| Team: | AEK Athens |
| Nationality: | Greek / Australian |
| Birth Date: | 17 May 1983 |
| Birth Place: | Sydney, Australia |
| Career Start: | 2000 |
| Career End: | 2019 |
| Coach Start: | 2020 |
| Career Position: | Shooting guard / small forward |
| Years1: | 2000–2006 |
| Team1: | Apollon Patras |
| Years2: | 2006–2007 |
| Team2: | Panellinios |
| Years3: | 2007–2009 |
| Team3: | Panionios |
| Years4: | 2009–2010 |
| Team4: | Panellinios |
| Years5: | 2010–2014 |
| Team5: | Kolossos Rodou |
| Years6: | 2014–2015 |
| Team6: | Apollon Patras |
| Years7: | 2015–2019 |
| Team7: | Kolossos Rodou |
| Cyears1: | 2020–2024 |
| Cteam1: | Kolossos Rodou (assistant) |
Ioannis Georgallis (alternate spellings: Giannis, Georgalis) (born May 17, 1983) is a Greek former professional basketball player, who finished his club playing career as the team captain of Kolossos Rodou of the Greek Basket League and a current basketball coach. At a height of 2.00 m (6 ft 6 in) tall, and a weight 104 kg (230 lbs), he mainly played at the small forward position.
Georgallis began his professional career in 2000, with the Greek club Apollon Patras. Formerly he was playing for youth teams of Ialysos and Kolossos. In 2006, he moved to the Greek club Panellinios, and the next year, he joined the Greek club Panionios. In 2009, he returned to Panellinios. In October 2010, he signed a three-year contract with the Greek club Kolossos Rodou.[1] He returned to Apollon Patras in 2014. He went back to Kolossos Rodou in 2015, where he eventually became the team captain, and he played with the team for four more seasons. Georgallis announced his retirement from the sport, on August 17, 2019.
Georgallis won the silver medal at the 1999 FIBA Europe Under-16 Championship, and the gold medal at the 2002 FIBA Europe Under-20 Championship, as a member of the Greek junior national basketball teams. He also won the silver medal at the 2005 Mediterranean Games, while playing with Greece's under-26 national selection.