James Joseph "Jimmy" Mill (19 November 1899 – 29 March 1950) was a New Zealand rugby union player. A halfback, Mill represented East Coast, Hawke's Bay and Wairarapa at a provincial level, and was a member of the New Zealand national side, the All Blacks, from 1923 to 1930. He played 33 matches for the All Blacks including four internationals. Of Ngāti Porou descent, Mill played for New Zealand Māori in 1922 and 1923.