Morris E. Day (born December 13, 1957) is an American singer, composer, actor and band leader.

In his teens, he went to the same high school as Prince in Minneapolis; they played together in the band Grand Central. In 1980, Prince covered Day's composition "Partyup" on his album Dirty Mind. In 1981, the funk-soul-dance band The Time was founded by Prince with Day as its lead singer.