Erwin Kostner (born 7 April 1958) is an Italian ice hockey coach and former player.

He competed in the men's tournament at the 1984 Winter Olympics.

After retirement he becomes a coach in Italy (with Ritten Sport, HC Gherdëina, SHC Fassa, the jr. team of Val Pusteria and the Under-18 and Under-20 national teams) and Switzerland (Giovani Discatori Turrita Bellinzona and HC Thurgau).

He is also the uncle of alpine skier Isolde Kostner.

This Italian biographical article relating to ice hockey is a stub.