Colin Leonard is an American recording and mastering engineer.

[3][4] Leonard took piano lessons as a child and began playing the drums at the age of 12.

In his early 20s, he began performing in bands and producing instrumentals for hip hop artists.

He studied classical guitar at the University of the Pacific, and attended Full Sail University, studying recording arts, from which he graduated in 1997.

[7][8][9] He has mastered music for Justin Bieber, Lil Baby, Jack Harlow, Lil Wayne, Beck, Gucci Mane, and Future, among others.