| Birgitt Austermühl | |
| Birth Date: | 8 October 1965 |
| Birth Place: | Kassel, West Germany[1] |
| Position: | Defender |
| Years1: | 1996 |
| Clubs1: | FSV Frankfurt |
| Nationalyears1: | 1991–1996 |
| Nationalteam1: | Germany |
| Nationalcaps1: | 55 |
Birgitt Austermühl (also spelled Austermuehl, born 8 October 1965) is a German former football defender. She was part of the Germany women's national football team.
She competed at the 1996 Summer Olympics, playing 3 matches. On club level she played for FSV Frankfurt.[2]