McCoy Falls is a waterfall on the Mersey River in Tasmania, situated in the wild country between the Walls of Jerusalem and Cradle Mountain–Lake St Clair National Parks.

It lies along a remote stretch of river known as the Never Never, where the Mersey passes through a series of notable cascades that also include Clarke Falls and Hartnett Falls downstream.

Reaching McCoy Falls requires a serious backcountry effort through a mix of alpine scenery and dense rainforest.

Travellers on the Cradle/Walls of Jerusalem circuit commonly encounter the falls as part of a multi-day route, navigating challenging scrub and multiple river crossings along the way.

The surrounding terrain is rugged, with steep cliffs bordering sections of the river corridor.