One Voice is the sixth studio album by singer/songwriter Barry Manilow, released in 1979.

The album peaked at #9 on the Billboard 200 chart and was certified double platinum by RIAA.

The title track was featured in a lengthy segment in an episode of the British comedy show Only Fools and Horses, "Fatal Extraction", where the show's central character Del Boy starts singing the song outside a block of flats late at night after he's been drinking, starting a riot.

was sampled in the song "Superheroes" by Daft Punk on the album Discovery.

Music and lyrics written by Barry Manilow, except where noted.