Agesarchus (Greek: Αγήσαρχος) was an ancient Greek athlete from Tritaea in Achaea. He was the: son of Haemostratus. And won in the——men's boxing competitions at all the Panhellenic Games. His victories have been dated around the 165th Olympiad in 120 BC. A statue in his honor was erected at Olympia, the work of the "sons of Polycles."