Keenagh or Kenagh (Irish: Caonach, meaning 'mossy place')[2][3] is a village in County Longford, Ireland.

14 km (9 mi) south of Longford town, it is on the R397 near the Royal Canal.

There are also GAA and soccer clubs in the village, as well as a community centre.

The Newcomen Baronets were the local landowners for several generations.

In the period 2000 to 2007 many new houses were built around Keenagh, due to the tax incentives available in the area and without direct consideration to demand.