Ioannis Papaioannou
Ioannis Papaioannou  | |
|---|---|
Ioannis Papaioannou, 2011  | |
| Country | Greece | 
| Born | 20 April 1976 (age 49) Athens, Greece  | 
| Title | Grandmaster (1998) | 
| FIDE rating | 2626 (June 2025) | 
| Peak rating | 2652 (August 2017) | 
| Peak ranking | No. 85 (January 2002) | 
Ioannis Papaioannou (Greek: Ιωάννης Παπαϊωάννου; born 20 April 1976) is a Greek chess grandmaster. He is a four-time Greek Chess Champion.