Nicole Vaidišová (Czech pronunciation: ; born 23 April 1989) is a Czech female tennis player.
Vaidišová has been playing tennis since she was six years old. She is a student of Nick Bollettieri and trains at the Nick Bollettieri Tennis Academy in Bradenton, Florida. Her serve is considered her biggest weapon. On 9 August 2006, at the age of 17 years, three months, and two weeks, she became the 12th-youngest player in WTA Tour history to be ranked in the top 10. She achieved a career-high ranking of World No. 7 on 14 May 2007. As of December 22, 2009 Vaidišová is ranked World No. 187.
As of March 2009, she was coached by her stepfather, Ales Kodat, who replaced David Felgate. By the end of 2009, she hired top coach Eric van Harpen.