Sgurra Bhreac[3] (alternative spelling 'Sgurra Breac'), sometimes referred to as the Big Rock, is a Canadian peak in the East Bay Hills of Cape Breton Island, an extension of the Appalachian mountain chain in the province of Nova Scotia.

[4] In Canada, however, its usage in geographical names is rare and generally only found in the province of Nova Scotia where it is a generic term for hill.

[5] The name, Sgurra Bhreac, (pronunciation approximately "skoor ah brec") means spotted or pitted ridge or rock in Gaelic, speckled peak.

[7] The Sgurra Breac, a local history / natural sciences newsletter published from 2004 to 2010, had adopted the name of the "Big Rock".

There is a first order Natural Resources Canada Geodetic Survey Division Station (Unique Number: 21139) on the summit, consisting of three markers.