Polona Hercog (born 20 January 1991) is a Slovenian tennis player. Her career-high rankings are No. 35 in singles and No. 56 in doubles. She has won four WTA Tour titles; two each in singles and doubles. Hercog also enjoyed success on the ITF Women's Circuit, winning 14 singles and five doubles titles. She is the Slovenian No. 1 in women's tennis. Partnering with Jessica Moore, she won the 2008 French Open and Wimbledon Championships junior titles in the doubles competition.