Roger I

• Roger I of Carcassonne, Count of Carcassonne
• Roger I of Tosny, Norman noble
• Roger I "de Berkeley", Norman noble, possibly the son of Roger I of Tosny - see Baron Berkeley
• Roger I of Sicily, Norman ruler of Sicily
• Roger I Trencavel, Viscount of Albi, Carcassonne, and Razès
• Roger I of Fézensaguet, Viscount of Fézensaguet