Gerald Alan Mattinson (born November 6, 1958)[1][2] is an American retired basketball coach.

[3] He then attended and played basketball for Casper College, earning All-American honors in his only season.

[3] In 1999, Mattinson paused his basketball coaching career to become principal at East Junior High School in Rock Springs.

[15] Wyoming advanced to the third round of the 2022 Women's National Invitation Tournament, losing 82–81 to UCLA in triple overtime at home on March 24, 2022.

Heather Ezell, a longtime Wyoming assistant under both Legerski and Mattinson, was promoted to head coach the same day.