Kilmacrennan[2] (Irish: Cill Mhic nÉanáin or Cill Mhic Réanáin),[3] also Kilmacrenan, is a village, townland and civil parish in County Donegal, Ireland.

Kilmacrennan lies on the N56 road, 9 km northwest of Letterkenny which is the largest town in County Donegal.

The village's name 'Cill Mhic nÉanáin' means 'the church of the sons of Éanán'.

The salmon and trout population is slowly increasing but will take a number of years for it to reach its old level.

A 1916 Remembrance Garden was opened to the public in 2016 to mark the centenary of the Easter Rising.