There is a standing stone in Cullenagh (Ballinakill, Galway) marked as “Stone” on the 6” OS map. It’s on the border of three townlands, Cullenagh, Reynabrone, and Drum.
The stone is 1.5m high and is in the junction of two walls. The Historic Environment Viewer refers to it as a possible standing stone.
Cullenagh - O’Donovan’s Field Name Books
Cullenagh - Logainm
Cullenagh - Griffith Valuation