Birreencorragh is a mountain in the Nephin Beg Range, County Mayo, Ireland, reaching above sea level.
The name Birreencorragh derives from the Irish ', meaning "rocky little spike"; ' is found in very few Irish toponyms.
The mountain is separated from nearby mountains, such as Glennamong and Nephin Beg in the west and Nephin in the east, by deep depressions. It makes a good viewpoint of the Nephin Beg Range.