- Source: Flannan (disambiguation)
Flannan may refer to:
Flannán mac Toirrdelbaig, saint and patron of Killaloe
Flannan Isles, a small island group in the Outer Hebrides of Scotland
Flannan Isles Lighthouse, lighthouse on Eilean Mòr, one of the Flannan Isles
St Flannan's College, Irish secondary school
Flannan Isle, poem by Wilfrid Wilson Gibson
