Lou and Peter Berryman (born in 1947) are American folk singers-songwriters. They are longtime residents of Madison, Wisconsin and tour the United States extensively.

Lou (for Louise) and Peter were married at one time—hence the common last name. They divorced, but remained friends and musical partners. (And, subsequently, they married again to new spouses.) Mostly, guitarist Peter writes the lyrics and accordionist Lou writes the music, but all their songs are collaborations.