Tarmonbarry, officially Termonbarry (Irish: Tearmann Bearaigh, meaning 'St Barry's sanctuary'),[2] is a village in County Roscommon, Ireland.

8 km west of Longford town, it is on the River Shannon where it is crossed by the N5 road.

St Barrys is the name of the local Gaelic football club, which takes members from Tarmonbarry, Whitehall and the Scramogue region.

[6] For a period of about ten years from 1925 to 1935, Tarmonbarry was a centre for hydroplane racing in Ireland, due to the water of the Shannon which was relatively calm.

[citation needed] This activity declined due to the high cost of running and maintaining the boats.