James Chisholm Dillon (16 November 1880 – 27 February 1949) was an Australian politician.
He attended state school at Ballarat East and then worked for the Victorian Railways.
From 1908 he was an estate agent, and on 14 April 1909 he married Maggie Hilda McGregor, with whom he had a daughter.
In 1932 he was elected to the Victorian Legislative Assembly as the United Australia Party member for Essendon.
After leaving politics he continued as secretary of the Melbourne Washed Sands Company, and was also president of the transportation section of the Victorian Railways Union.