Ennis (Irish: Inis) (also referred to as "The Big E") is the county town of Clare in Ireland. Situated on the River Fergus, it lies north of Limerick and south of Galway on the main N18 road connecting these two cities. Its name is a shortening of the original Inis Cluain Ramh Fhada ("Long Rowing Meadow Island").
Ennis was a former United Kingdom Parliament constituency, in Ireland, returning one MP. It was an original constituency represented in Parliament when the Union of Great Britain and Ireland took effect on 1 January, 1801.