The 2022–23 Northern Arizona Lumberjacks men's basketball team represented Northern Arizona University in the 2022–23 NCAA Division I men's basketball season.

The Lumberjacks were led by fourth-year head coach Shane Burcar, and played their home games at the Rolle Activity Center and Findlay Toyota Court in Flagstaff, Arizona as members of the Big Sky Conference.

They defeated Idaho,[1] Eastern Washington[2] and Montana[3] to advance to the championship game of the Big Sky tournament, their first appearance in the conference finals since 2008.

[3] There they lost to Montana State,[4] closing their season with a 12–23 record.

11 seed in the Big Sky tournament, they lost to Eastern Washington in the first round.