Ragnvald Olafsson

Ragnvald Olafsson or Rǫgnvaldr Óláfsson may refer to:


 * Ragnvald Heidumhære (fl. 9th century), possibly son of Olaf Geirstad-Alf, petty king of Vestfold
 * Rǫgnvaldr Óláfsson (fl. 1164), king of Mann and the Isles
 * Rǫgnvaldr Óláfsson (died 1249), king of Mann and the Isles