Prentiss Barnes (April 12, 1925 – October 1, 2006) was an American rhythm and blues singer in the 1950s.
He sang bass for the legendary vocal group The Moonglows which had such hits as "Sincerely" and "The Ten Commandments of Love".
Mentored by Alan Freed, the group’s doo-wop harmony style achieved great success on the national R&B charts and recorded on Chess Records.
Barnes was inducted into the Rock and Roll Hall of Fame in 2000 as a member of the Moonglows.
In 1995, he received the Rhythm and Blues Foundation Pioneer Award.