Michael Thomas Lonergan (born January 28, 1966) is the former head coach of the George Washington University Colonials men's basketball team.

[6] In 12 seasons at CUA, Lonergan guided the Cardinals to nine NCAA Tournaments, and an overall record of 251-88, a school-best .740 winning percentage.

[8] In May 2011, Lonergan was hired by George Washington University athletic director and former America East commissioner Patrick Nero to take over as head coach of the Colonials.

He guided GW to 22 victories, seventh-most in a season in program history, and a return trip to the postseason with an at-large selection to the National Invitation Tournament.

Coach Lonergan helped the Colonials post a 60-54 opening round victory at Pittsburgh for the program's first-ever win in five NIT appearances.

[15] Nearly a year later on September 13, 2017, Lonergan and George Washington officials settled the former coach's legal dispute against the school over his firing.

[18][19] On November 18, 2018, Deadspin published a story which detailed the conduct and dismissals of both former George Washington athletic director Patrick Nero and Lonergan along with the tumultuous relationship between the two.

[3] Mike and Maggie met while both working at the basketball camp of legendary DeMatha Catholic High School coach Morgan Wootten.

[21] Lonergan has been involved with the Coaches vs. Cancer campaign from the beginning to help raise awareness about the devastating disease which took his mother's life.