Yalıköy, formerly Podima, is a village in the administrative status of a neighborhood of Çatalca district in Istanbul Province, northwest Turkey. Located at the Black Sea coast, it is a seaside resort with a sand beach. Current mukhtar is Fehmi Kaçar. Yalıköy was historically a Greek town named Potima. During the population exchange between Greece and Turkey in 1923 that followed the Greco-Turkish War (1919–22), around 60 Turkish families from Greece were settled in the homes of exchanged Greeks. Its population as of 2012 is 2,034.