Ergun Berksoy (born 17 June, 1943) is a Caymanian and Turkish business entrepreneur who is married to Petra Berksoy. He is the founder and owner of Seven Mile Investment Co. Ltd. in Grand Cayman; partner in Cayman Crystal Caves, Grand Cayman; and the owner of 5-Star hotel chain Cesars in Antalya, Turkey.

Throughout his career, Ergun Berksoy worked across a wide range of industries, including but not limited to Tourism, Hospitality, Real-Estate, Trade, Air Force and Sports. He made significant contributions to the industries he has worked in: in the 70's he revolutionised the logistics of food export in Turkey; in the 80's he empowered Turkish migrants in Germany by leading to their success in sports; in the 90's he instigated air travel between Israel and Turkey, which led to a nationwide boom in tourism. In that era, he also established three 5-star hotels in Turkey, Cesars Hotels, which are one of the first and longest lasting hotels in the region.