Henry James Kadwell (29 May 1902 – 27 October 1999) was an Australian professional rugby league footballer who played in the 1920s and 1930s.

A South Sydney junior from the Redfern United Club,[3] Kadwell first played for the Rabbitohs in the first grade NSWRFL premiership in 1927.

At the end of his first season he played at fullback in Souths' win over Western Suburbs in the grand final.

Kadwell became St. George's captain-coach for the 1931 NSWRFL season and was also the club's top point scorer in first grade.

On 7 February 1945 he was selected by the club's committee to replace Bill Kelly as first-grade coach, although Percy Williams later shared the position.