Gustav Lechner (17 February 1913 – 5 February 1987) was a footballer who represented both the Yugoslavian and Croatian national sides.
Born in Osijek and nicknamed Lembika, he spent his early career with Slavija Osijek and BSK Belgrade; while playing with the latter he won 3 Yugoslav titles and graduated from law school. In 1941 he and team-mate Ernest Dubac joined Građanski Zagreb. At the end of the war, he became player-manager of Proleter Osijek.
Lechner played 44 matches for the Yugoslav national team between 1931 and 1940. He also played 12 matches for the IS Croatian national team.
After retiring as a player in 1949, Lechner became a football manager and coached Metalac Osijek, Dinamo Pančevo, Vojvodina Novi Sad, Dinamo Zagreb, Velež Mostar, Slavonija Požega and NK Zagreb.
- BSK Belgrade
- Građanski Zagreb
- IS Croatia championship: 1943