Joseph Michael "Dusty" Hill (born May 19, 1949) is the bassist and co-vocalist with the American rock group ZZ Top.
Hill was born in Dallas, Texas and grew up in the Lakewood neighborhood of East Dallas. He attended Woodrow Wilson High School (Dallas) where he played the cello.
Along with his brother Rocky Hill and future fellow ZZ Top member Frank Beard, Dusty Hill played in local Dallas bands the Warlocks, the Cellar Dwellers, and American Blues. From 1966 to 1968, American Blues played the Dallas-Fort Worth-Houston circuit.
In 1968, the band decided to leave the Dallas-Fort Worth area and relocate to Houston. At this time, however, guitarist Rocky Hill wanted to focus on "straight blues," while Dusty wanted the band to rock more. Rocky left the band and Dusty and Beard moved to Houston, joining guitarist/vocalist Billy Gibbons of Houston psychedelic-rockers Moving Sidewalks to form ZZ Top in 1969.
Dusty Hill's on-screen appearances include Back to the Future Part III, Mother Goose Rock 'n' Rhyme, WWE Raw and Deadwood, and as himself in the 11th season episode of King of the Hill, "Hank Gets Dusted", in which Hank Hill is said to be Dusty's cousin. He also made an appearance as himself on The Drew Carey Show as himself auditioning for a spot in Drew's band, but is rejected because of his attachment to his trademark Texas beard.