| Head coach|
| Greek League
March 21, 1967 (age 48)
Thessaloniki, Greece (1967-03-21)
Apollon Kalamarias Cadets, Juniors
Olympiacos B.C. (Head coach, since 2014)
Vassilis Spanoulis, Georgios Printezis, Vangelis Mantzaris, Ioannis Papapetrou, Dimitrios Agravanis
Ioannis Sfairopoulos Wikipedia
Ioannis Sfairopoulos (alternate spellings: Giannis, Yiannis, Yannis, Sferopoulos) (Greek: Γιάννης Σφαιρόπουλος; born March 21, 1967) is a Greek professional head basketball coach of Olympiacos.
Sfairopoulos played basketball in the Apollon Kalamarias youth club systems, and as soon as he stopped playing youth level basketball at age 19, he began his coaching career in the same Apollon Kalamarias club systems, working there from 1986 to 1997. He coached in the club's cadets, juniors, and senior men's teams. He coached the senior men's team, which he took over in 1994, in the Greek lower divisions.
He was then an assistant coach with the Greek Basket League club PAOK, from 1997 to 2005, and also was PAOK's head coach during the 2000–01 season. He then worked as an assistant head coach with Olympiacos, from 2005 to 2008, under head coaches Pini Gershon and Panagiotis Giannakis.
In 2006, he worked as an assistant coach with the NBA club Cleveland Cavaliers' NBA Summer League team. From 2008 to 2011, he was the head coach of Kolossos. In 2011, he became an assistant coach with the Russian League club CSKA Moscow, under head coach Jonas Kazlauskas. He then worked as an assistant coach of the NBA's Houston Rockets.
He became the head coach of the Greek EuroCup team Panionios in 2012. He became the head coach of the Greek EuroLeague team Olympiacos in 2014. In 2015, he extended his contract with Olympiacos, through the 2017–18 season.
Sfairopoulos was an assistant coach with the senior men's Greek national basketball team from 2001 to 2004, under head coaches Kostas Petropoulos, Giannis Ioannidis, and Panagiotis Giannakis. He was an assistant coach on the Greek national team that competed at the 2004 Summer Olympics. He also worked as assistant coach for the Greek national team from 2009 to 2010, under head coach Jonas Kazlauskas.
He was an assistant coach with Greece at the 2010 FIBA World Championship.EuroBasket 2009: Bronze
Greek Cup Winner: (1999)
VTB United League Champion: (2012)
Russian League Champion: (2012)
2x Greek League Champion: (2015, 2016)
Greek League Best Coach: (2015)