Knockninny Quay is a public access point on the western shore of Upper Lough Erne, situated near Derrylin village in County Fermanagh.

The quay provides boat access to the surrounding lough and serves as a launching point for exploring the island-studded waters of the Upper Erne. Additional public parking is available at the quay, which sits adjacent to Knockninny Marina.

On land, the quay gives access to Knockninny Hill — a prominent local landmark once associated with the Maguire chieftains — as well as Ninian's Well and numerous archaeological sites in the area.

The quay is also a designated access point on the Lough Erne Canoe Trail, which links Upper and Lower Lough Erne across roughly 50 kilometres of navigable water. Enniskillen lies approximately two hours away by boat at a leisurely pace.