Steven 'Steve' Horvat (born 14 March 1971) is a retired Australian professional soccer player.
A graduate of the Australian Institute of Sport, Horvat began his career with Melbourne Croatia. He later played with Sunshine George Cross, North Geelong Warriors, the Melbourne Knights (for whom he won the Joe Marston Medal), Hajduk Split, Crystal Palace (although he didn't make a league appearance) and Carlton. He retired in March 2003 at the age of 32. Horvat made a total of 96 appearances in the National Soccer League.
Horvat was a regular member of the Australian national side, making 32 appearances between 1994 and 2002, and participated in a number of international competitions, including the 1987 FIFA U-16 World Championship, 1996 Summer Olympics, 1997 FIFA Confederations Cup, 2001 FIFA Confederations Cup and 2002 OFC Nations Cup. Horvat also played in the game with highest scoreline in an international football match, when Australia beat American Samoa 31–0.
After retiring was named as Advisor to the Board by his former club Melbourne Knights FC.