Petra Dizdar
| Country (sports) | Croatia | 
|---|---|
| Born | 30 June 1984 | 
| Height | 5 ft 9 in (175 cm) | 
| Plays | Right-handed | 
| Prize money | $10,284 | 
| Singles | |
| Career record | 34–40 | 
| Highest ranking | No. 454 (4 Aug 2003) | 
| Doubles | |
| Career record | 22–25 | 
| Career titles | 1 ITF | 
| Highest ranking | No. 520 (23 Jul 2001) | 
Petra Dizdar (born 30 June 1984) is a Croatian former professional tennis player.
Dizdar, a native of Split, qualified for her only WTA Tour singles main draw at the 2003 Croatian Bol Ladies Open and fell in the first round to the third-seeded Vera Zvonareva. She played collegiate tennis for the University of Texas, where she was named Big 12 Freshman of the Year in 2004 and earned All-Big 12 selection three times as a singles player.