The 2017 NCAA Division II men's basketball tournament involved 64 teams playing in a single-elimination tournament to determine the national champion of men's NCAA Division II college basketball.

The eight regional winners met in the Elite Eight for the quarterfinal, semifinal, and championship rounds.

For the first time, the Elite Eight was held at the Sanford Pentagon in Sioux Falls, South Dakota.

Northwest Missouri State defeated Fairmont State, 71–61, to win the first national championship in the school's history.

[1] Location: Joe Retton Arena * – Denotes overtime period Location: Bearcat Arena * – Denotes overtime period Location: Le Moyne Events Center * – Denotes overtime period Location: Knights Hall Location: Spragins Hall * – Denotes overtime period Location: Curry Arena Location: Lockridge Arena * – Denotes overtime period Location: RIMAC Location: Sanford Pentagon