| James Regan | |
| Office1: | Ontario MPP |
| Term Start1: | 1911 |
| Term End1: | 1919 |
| Predecessor1: | Daniel Reed |
| Successor1: | Wilson A. Crockett |
| Constituency1: | Wentworth South |
| Party: | Conservative |
| Birth Date: | 29 June 1855 |
| Birth Place: | Mimosa |
| Occupation: | Farmer |
| Spouse: | Alferetta Templer (m. 1884) Kate Alma Gabel (m. 1898) |
James Thomas Hammill Regan (June 29, 1855[1] - 1927) was a farmer, merchant and political figure in Ontario. He represented Wentworth South in the Legislative Assembly of Ontario from 1911 to 1919 as a Conservative member.
He was born in Chatham, the son of James Regan and Sarah Hammill, and was educated in Ancaster and Dundas. Regan was married twice: first to Alferetta Templer in 1884 and then to Kate Alma Gabel in 1898. He ran unsuccessfully for a seat in the assembly in 1905 and 1908.[1] Regan later served as sheriff for Wentworth County.[2]