Australian rugby league footballer
John ‘Jack’ Rosa (1905–1967) was an Australian rugby league footballer who performed within the Thirties.
He was a premiership profitable five-eighth for the Western Suburbs. He performed two seasons of first grade between 1930–1931, which included profitable the 1930 Grand Final. 
Rosa died at Merrylands, New South Wales on 14 July 1967.
“Jack Rosa – Career Stats & Summary – Rugby League Project”. Rugbyleagueproject.org.
- Alan Whiticker/Glen Hudson: Encyclopedia of Rugby League Players> 1995. (ISBN 1875169571)
- “Western Suburbs Magpies First Grade Players”. Wests Magpies.
- Sydney Morning Herald: Death Notice – 15/7/1967