Raghnall Mac Ruaidhrí was an eminent Scottish magnate and chief of Clann Ruaidhrí. Raghnall's father, Ruaidhrí Mac Ruaidhrí, appears to have been slain in 1318, at a time when Raghnall may have been under age. Ruaidhrí himself appears to have faced resistance over the Clann Ruaidhrí lordship from his sister, Cairistíona, wife of Donnchadh, a member of the comital family of Mar. Following Ruaidhrí's demise, there is evidence indicating that Cairistíona and her powerful confederates also posed a threat to the young Raghnall. Nevertheless, Raghnall eventually succeeded to his father, and first appears on record in 1337.
- Position held
- Scottish clan chief
- Died
- October 1346
