Rónán is an Irish language male given name meaning "little seal" (Rón meaning "seal", and -án being a diminutive suffix). It may refer to:
Rónán mac Colmáin (fl. 7th century), king of Leinster. Called Rónán mac Aédo in the tale Fingal Rónaín.
Rónán, Irish churchman from Gaul, a proponent of the Roman dating of Easter and rival of Fínan, bishop of Lindisfarne, at the Synod of Whitby (664)
St Ronan of Locronan (fl. c. 6th century), early Irish saint and hermit at Locronan and Quimper, Brittany. Feast day: 1 June.
St Rónán mac Beraig (d. c. 665), founder of Druim Inesclainn (Drumshallon, Ireland). See Féchín of Fore.
St Rónán Finn son of Sárán (fl. 7th century), patron saint of Lann Rónáin in the parish of Magheralin (Co. Down), brother to St Cairnech and the saint responsible for bringing a curse upon Suibne. He was later also conflated with Rónán mac Beraig.<!--Lann Rónáin = Kelminiog or Kilminiog in Iveagh. His feast is celebrated on 22 May, both in Ireland and Scotland.-->
St Rónán (died 737), abbot of Kingarth (Bute, Scotland), possibly the patron saint of Kilmaronock (Dunbartonshire) and Innerleithen.