Stephanie Graf (born 26 April 1973, in Klagenfurt) is an Austrian former middle distance runner who won silver medals in the 800 metres at both the Olympic Games and the World Athletics Championships.

In June 2010 Graf was suspended for two years for an anti-doping rule violation.

Graf finished second to Maria de Lurdes Mutola in the women's 800 meters at both the 2000 Olympics in Sydney and the 2001 World Athletics Championships in Edmonton, Alberta.

Her time from the 2000 Olympics, 1:56.64 minutes, is the current Austrian 800 metres record.

[citation needed] Proceedings were issued against Graf by the Austria's anti-doping authority in May 2010.