Petra Cetkovska (born 8 February 1985 in Prostějov, Czechoslovakia) is a professional female tennis player from the Czech Republic & is of ethnic Macedonian origin. She reached her career high singles ranking No.49 on 16 June 2008.
Petra Cetkovska turned professional in 2000. Since then, she won 15 ITF singles titles and 16 doubles titles.
In 2007, she made breakthrough in her WTA ranking, and notched 3 ITF titles. Also, she won her first WTA doubles title with compatriot Andrea Hlavackova in ECM Prague Open.
She made her grand slam main draw debut in 2007 US Open, going through to second round by defeating Jill Craybas from USA. She eventually lost to 14th seed Elena Dementieva in second round match.
At the 2008 French Open, she upset the 23rd seed Alona Bondarenko 6-3, 6-0 in the first round en route to a fourth round showing, her best Grand Slam showing to date. However, she was soundly beaten by then World No. 2 and eventual champion Ana Ivanović in a 6-0, 6-0 whitewash.
Cetkovska lost in the opening round of the 2009 Australian Open to Marina Erakovic 4-6, 7-5.