Arsenis Maroulis (; born 1978) is a retired Greek water polo player and water polo coach, currently coaching G.S. Peristeriou. Maroulis played for Greek powerhouse Olympiacos with whom he won the 2001âÂÂ02 LEN Champions League in Budapest, being also runner-up of the 2000âÂÂ01 LEN Champions League in Dubrovnik.
Maroulis was part of the Olympiacos squad that won the 2002 Triple Crown (LEN Champions League, Greek Championship, Greek Cup).