| Giannis Kalmazidis | |
| Nationality: | Swedish Greek |
| Birth Date: | 16 June 1968 |
| Birth Place: | Budapest, Hungary |
| Height: | 1.90 m |
| Position: | Setter |
| Years: | 1986–1989 1989–1992 1992–1994 1994–1999 1999–2001 2001–2003 2003–2007 |
| Clubs: | Sollentuna Orestiada Esperos Vyzantiou PAOK Iraklis Thessaloniki Aris Thessaloniki Iraklis Thessaloniki |
| Coachyears: | 2007–2008 2008–2010 2010–2012 2012–2016 2013–2014 2014–2017 2017–2018 2018–2019 2020–2021 2021–2022 2022–2024 2024– |
| Coachteams: | Iraklis Thessaloniki Olympiacos Olympiacos Greece Panathinaikos PAOK Omonia Speedball Chekka Saaremaa PAOK Panathinaikos OFI Crete |
| Nationalyears: | 1987–1989 |
| Nationalteam: | Sweden |
| Medaltemplates-Expand: | yes |
Giannis Kalmazidis (Greek, Modern (1453-);: Γιάννης Καλμαζίδης; born 16 June 1968) is a Greek-Swedish retired volleyball player and current coach of OFI Crete. He played for national level for Sweden and was competed in the men's tournament at the 1988 Summer Olympics.[1] He was also member of the team who won the silver medal in 1989 European Championship.