The 2005 NCAA Men's Water Polo Championship was the 37th annual NCAA Men's Water Polo Championship to determine the national champion of NCAA men's collegiate water polo. Tournament matches were played at the Kinney Natatorium at Bucknell University in Lewisburg, Pennsylvania from December 3–4, 2005. USC defeated Stanford in the final, 3–2, to win their third national title. The Trojans (26–1) were coached by Jovan Vavic. The tournament's leading scorer, with 5 goals, was from Loyola Marymount.