Riverside Theatre or Riverside Theater may refer to:
United States FIVE (music venue), formerly known as Riverside Theater, Jacksonville, Florida Fox Performing Arts Center, formerly known as Fox Riverside Theater, Riverside, California Riverside Theater (Milwaukee), Wisconsin Riverside Theatre (Iowa), Iowa Riverside Theatre (Vero Beach), see Interstate 95 in Florida
Other countries Riverside Theatre, Coleraine, Northern Ireland Riverside Theatres Parramatta, Australia