John Henry "Jack" Adamson (6 January 1873 – 2 October 1937) was an Australian rules footballer who played three games for South Melbourne in the Victorian Football League between 1897 and 1898. He was the brother of South Melbourne captain Dave Adamson. Educated at Albert Park State School, Adamson played for Napier Imperial, the South Melbourne junior side in the Metropolitan Junior Football Association, before graduating to play with South Melbourne in the Victorian Football Association from 1893–96. A forward, he was described as being an excellent place kick.