Glinsk (Irish: Glinsce, meaning 'glen of the brambles')[1] is a townland in the County Mayo Gaeltacht in Ireland.

[citation needed] The only obvious remains of human habitation in the area is the ruin of a British lookout tower built in 1806 high up on the southern side of Glinsk mountain.

There is a proposal to build a 480 megawatt combined wind farm-hydroelectric facility at this location which could contribute towards the county's goal of becoming self-sufficient in energy supply.

The project would use wind turbines to pump sea water up to energy storage in the form of reservoirs on Glinsk Mountain.

When required, the reservoirs would feed power generating turbines by allowing the water to fall down a shaft back to the ocean.