Lowell Fillmore “Sly” Dunbar (born 10 May 1952, Kingston, Jamaica) is a Jamaican drummer, best known as one half of the prolific Jamaican rhythm section and reggaeproduction duo Sly and Robbie.

Dunbar began playing at 15 in a band called The Yardbrooms. His first appearance on a recording was on the Dave and Ansell Collins album Double Barrel. Dunbar joined a band Ansell Collins called Skin, Flesh and Bones.