Kelly Thomas LeMieux (born April 7, 1967 in Salem, Oregon, United States) is an American bass player.

He was the touring bass player for Los Angeles punk band Fear in 1997 and 1998.

LeMieux played in Goldfinger until 2014 and is a guest instructor for the Portland chapter of the School of Rock.

In October 2013, he was announced as replacement for Buckcherry's former bassist Jimmy Ashhurst, for the rest of the band's 2013 touring schedule.

[4] On July 9, 2016, via his Facebook account, LeMieux revealed that he had been diagnosed with Acute Myeloid Leukemia (AML), a type of cancer of the blood and bone marrow with excess immature white blood cells.