2023 NCAA Division II men's lacrosse tournament

The 2023 NCAA Division II Men's Lacrosse tournament was the 38th annual single-elimination tournament to determine the national champion of NCAA Division II men's college lacrosse.

The championship game was played on May 28, 2023, at Lincoln Financial Field in Philadelphia, Pennsylvania. All other games were played at the campus of the higher-seeded team in the matchup.

Lenoir-Rhyne defeated Mercyhurst in the final, 20–5, to win their first national championship.

Qualification
All Division II men's lacrosse programs were eligible for invitation into the tournament. Unlike the Division I and Division III tournaments, there are no automatic-qualifiers for winning their conference, and each of the 12 teams are selected via committee invitation with six teams from the North region and six from the South region.