Martin Amerhauser (born 23 July 1974) is an Austrian former professional footballer who played as a midfielder.
A leftsided midfielder renowned for his accurate crossing, Amerhauser only played for SV Salzburg and Grazer AK in the Austrian Bundesliga.
Regarded as one of Austria's biggest talents in the early 1990s, he never really lived up to his potential but he did win major silverware with Salzburg and Graz.
In his first season, Amerhauser scored the decisive 3–0 in probably the best game Stadion Lehen has ever seen against Sporting CP in the UEFA Cup.
Amerhauser made his debut for Austria in a March 1998 friendly match against Hungary in which he immediately scored his first international goal.