James Hamlin Walker (12 March 1862 – 16 September 1944) was a New Zealand local body politician, sharebroker, and earlier plumber.

[2] His period of office included the initiation of an amalgamation between Dunedin City and North East Valley Borough.

After World War I he was chairman of the committee which raised funds to build premises for the Dunedin Returned Services' Association.

[2] Over a similar length of time he was closely associated with the Dunedin Competitions Society, his various roles including chairman, treasurer, and committee member.

As a trustee and chairman of the Mammoth Art Union Committee, Walker helped oversee the distribution of funds for the improvement of Logan Park.