Aclare (Irish: Áth an Chláir, meaning 'ford of the plain') is a village in County Sligo, Ireland. It lies within both the civil and Catholic parish of Kilmactigue. Aclare village is situated on the Inagh (also spelt "Eignagh") river, a tributary of the River Moy.

Evidence of ancient settlement in the area includes a number of ringfort and enclosure sites in the townlands of Carns, Lislea and Kilmacteige.

Belclare Castle (Irish: Béal an Chláir, meaning 'mouth of the plain'), a ruined castle near the village in Belcare townland, is historically associated with the O'Hara clan. The castle is located about half a mile west of Kilmactigue Chapel and was originally built in the 15th century.^{[citation needed]}

The Annals of Ulster and Annals of the Four Masters record that, in 1512, Belclare Castle and Aclare were the site of a battle between the O'Donnells of Donegal and the McWilliam Bourkes of Connacht.

Bus Éireann route 479 links Aclare with Sligo via Tourlestrane, Coolaney and Collooney.