Mac Reithe of Kilmacrehy
- 6th century? (unknown)
- feast-day: 2 August, 11 August
- saints of Ireland
- Cell Mac Reithe
patron saint of Cell Mac Reithe (Kilmacreehy, Co. Clare) and Cell mac nAingin (Ballynakill, Co. Galway)
- Mac Oireachtaigh (Aodh)Mac Phartholáin (Cormac)Mac Piarais (Pádraig Anraí) Pearse (Patrick)Mac Raith Úa Paain
- Mac Reithe of Kilmacrehy Mac Mathghamhna (Aodh Óg)Mac Mathghamhna (Aodh Ruadh)Mac Mathghamhna (Brian mac Aodha Óig)Mac Mathghamhna (Muircheartach) ... of ClooneenaghMac Mathghamhna (Muircheartach) ... scribe [fl. 17th c.]