Rike or Ryke is a given name and a surname. It may refer to:
Rike Boomgaarden (), German singer and songwriter Ryke Geerd Hamer (1935–2017), German physician whose license was revoked for originating and practicing a system of pseudo-medicine Kjell Kristian Rike (1944–2008), Norwegian sports commentator
See also Rike Kumler Co., commonly known as Rike's, a former American department store in Dayton, Ohio Reich, spelled in Swedish and modern Norwegian, rige in Danish and riik in Estonian; analogous to the English word "realm"