Petros Tsitsipas (Greek: Πέτρος Τσιτσιπάς, pronounced [ˈpetros t͡sit͡siˈpas]; born 27 July 2000) is a Greek professional tennis player. He has a career-high ATP doubles ranking of No. 156, achieved on 21 November 2022, and also has a career-high ATP singles ranking of No. 727, achieved on 30 August 2021. Tsitsipas represents Greece at the Davis Cup, where he has a W–L record of 8–7. Petros is the younger brother of Stefanos Tsitsipas.