Thomastown GAA is a Gaelic Athletic Association club located in Thomastown, County Kilkenny, Ireland. 

The club grounds are located in Grennan, Thomastown at coordinates 52.521799664802494, -7.129534845679021

The club was founded in 1905 and fields teams in both hurling and Gaelic football. 

We are the reigning Kilkenny Senior Hurling Champions for 2024.