NRBQ is an American rock band founded in 1967. It is known for its live performances, containing a high degree of spontaneity and levity, and blending rock, pop, jazz, blues and Tin Pan Alley styles. Its best known line-up is the 1974–1994 quartet of pianist Terry Adams, bassist Joey Spampinato, guitarist Al Anderson, and drummer Tom Ardolino. 2004 saw the beginning of a several-year-long hiatus interrupted only by a few reunion performances, while band members pursued other projects. In 2011, the band returned with keyboardist Adams as the only member from any previous lineup.

The abbreviation "NRBQ" stands for New Rhythm and Blues Quartet (originally Quintet).