Rögnvaldsson

Rögnvaldsson may refer to:


 * Echmarcach Rognvaldsson (died 1064), dominant figure in the eleventh-century Irish Sea region
 * Eiríkur Rögnvaldsson (born 1955), Icelandic linguist, professor of Icelandic at the University of Iceland
 * Guðrøðr Rǫgnvaldsson (died 1231), AKA Guðrøðr Dond, ruler of the Kingdom of the Isles
 * Hallad Rognvaldsson, Norse jarl ruling the archipelagos of Orkney and Shetland
 * Jón Rögnvaldsson (died 1625), alleged Icelandic sorcerer
 * Petur Rognvaldsson (1934–2007), Icelandic-born athlete and actor
 * Robert Rognvaldsson (died between 928 and 933), Viking who became the first ruler of Normandy