A British pub rock band, formed in mid 1971 in Canvey Island, Essex. The name of the band, Dr. Feelgood, is slang for heroin, or for doctors who are prepared to overprescribe drugs. Although their most commercially productive years were the early to mid 1970s, they continue to tour and record to this day.

The group's original distinctively British R&B sound was centered on Wilko Johnson's choppy guitar style. Along with Johnson, the original band line-up was comprised of John B. Sparks (bass guitar), John Martin (aka The Big Figure) (drummer) and Lee Brilleaux (vocals).

Like many pub rock acts, Dr. Feelgood were known primarily for their high energy live performances, although studio albums like Down by the Jetty (1974) and Malpractice (1975) were also popular. Their breakthrough 1976 live album Stupidity reached number one in the UK album chart.

But after the follow-up Sneakin' Suspicion, Johnson left the group and was replaced by John 'Gypie' Mayo. With Mayo, the band was never as popular as with Johnson, but still enjoyed their only Top Ten hit single in 1979, with Milk and Alcohol.

Despite Mayo's departure in 1981, and various subsequent line-up changes, Dr. Feelgood continued touring and recording, although the band then suffered an almost career-finishing blow when their frontman, Brilleaux, died of cancer in April 1994. But, as Brilleaux had insisted prior to his death, Dr. Feelgood reunited, adding vocalists Pete Gage and then Robert Kane, and recommenced touring during the late 1990s.

Each year a special memorial concert, known as the Lee Brilleaux Birthday Memorial, is held on Canvey Island, where ex and current Feelgoods celebrate the music of Dr. Feelgood, and raise money for Fairhaven's hospice.