Jack Cosgrove "Bluey" Watkins (1893–1974) was an Australian rugby league footballer.

He played lock, with seven test matches for his country, including the 1921–22 Kangaroo tour of Great Britain.

[2] Watkins played for just one club in the New South Wales Rugby Football League premiership throughout his career which spanned 14 years, interrupted by the First World War.

[3] After enlisting in the First World War, Watkins was chosen to play a series of matches for Australian Imperial Forces (AIF) against England.

This rugby league football biography relating to an Australian born in the 1890s is a stub.