Knocknacarry (/ˌnɒknəˈkjɑːri/ NOK-nə-KYAR-ee; from Irish Cnoc na Caraidh / Cnoc na Cora 'hill of the weir' – referring to a weir diverted off the River Dun which operated a watermill) is a hamlet and townland (of 155 acres) about 1 kilometre west of Cushendun and 17 kilometres south-east of Ballycastle in County Antrim, Northern Ireland.

It is situated in the historic barony of Glenarm Lower and the civil parish of Layd.

It is within the Causeway Coast and Glens Borough Council area.

Knocknacarry lies within the Antrim Coast and Glens Area of Outstanding Natural Beauty, designated in 1988.

[3] St. Ciaran's Primary School, which also serves the village of Cushendun and the wider local area, is in Knocknacarry.