St Olan's is a residence in Aghavrin townland, 4.2 km (2.6 mi) north-west of Coachford village in County Cork, Ireland.

Lewis's Topographical Dictionary of Ireland (1837) states a glebe of 30 acres was purchased at Aghavrin by the Board of First Fruits, but the rector did not take possession, as the annual rental was too high.

[1] The Ordnance Survey name book (c. 1840) describes the 'Glebe of Aghavrin' as the property of Captain Crooke, being good ground with some plantation, and the remainder under cultivation.

The 1842 surveyed OS map depicts St Olan's Rectory, with the surrounding grounds and glebe clearly shown.

[4] The Irish Tourist Association survey of 1944 refers to 'St Olan's House, Aghavrin', the residence of Mr Devlin, Area Engineer of Cork County Council.