Roger I may refer to: In chronological order Roger I of Carcassonne (died 1012), Count of Carcassonne Roger I of Tosny (), Norman noble Roger I "de Berkeley" (died 1093), Norman noble, possibly the son of Roger I of Tosny - see Baron Berkeley Roger I of Sicily (1031–1101), Norman ruler of Sicily Roger I Trencavel (died 1150), Viscount of Albi, Carcassonne, and Razès Roger I of Fézensaguet (1190–1245), Viscount of Fézensaguet