Harold Melvin & the Blue Notes were an American singing group, one of the most popular Philadelphia soul groups of the 1970s. The group's repertoire included soul, R&B, doo-wop, and disco.

Founded in Philadelphia, Pennsylvania in the early 1950s as The Charlemagnes, the group is most noted for several hits on Gamble and Huff's Philadelphia International label between 1972 and 1976, although they performed and recorded until Melvin's death in 1997. However, the remaining members, the Blue Notes, were reunited in 2013 for the Soul Train Cruise, and will reunite again in 2015, during the fourth sailing.