Dean Mountain is a police officer, and a professional rugby league footballer who played in the 1980s and 1990s. He played at club level for Stanley Rangers ARLFC, Pointer Panthers (now named Castleford Panthershttps://web.archive.org/web/20141222155438/http://www.pitchero.com/clubs/castlefordpanthersarlfc/), Castleford, Ryedale-York and Huddersfield, as a , or , his rugby league career was ended by damage to his cruciate ligaments, sustained during a tackle in an A-Team evening game in January 1991, following a recovery from a broken bone in his thumb.
Mountain also represented Great Britain under-21s against France in 1987.
Mountain is the older brother of the rugby league footballer for Huddersfield and York; Gary Mountain.