| John Smythe Hall | |
| Office: | Member of the Legislative Assembly of Quebec for Montréal-Ouest |
| Successor: | None, district abolished |
| Term Start: | 1886 |
| Term End: | 1890 |
| Office2: | Member of the Legislative Assembly of Quebec for Montréal division no. 5 |
| Predecessor2: | None, district created |
| Successor2: | Robert Bickerdike |
| Term Start2: | 1890 |
| Term End2: | 1897 |
| Birth Date: | 7 August 1853 |
| Birth Place: | Montreal, Canada East |
| Death Place: | Calgary, Alberta |
| Party: | Conservative |
John Smythe Hall (August 7, 1853 - January 8, 1909) was a Canadian lawyer, politician, and editor.
Born in Montreal, the son of John Smythe Hall, a lumber merchant, and Emma Brigham, he attended Bishop's College School in Lennoxville, Quebec and received a Bachelor of Law degree from McGill University in 1875. He was called to the Quebec Bar in 1876 and then started a law career which would see him become a principal partner of the law firm Hall, Cross, Brown, and Sharp.
He was first elected to the Legislative Assembly of Quebec in the 1886 election for the riding of Montréal-Ouest. A Conservative, he was acclaimed in the 1890 election in the riding of Montréal division no. 5 and was re-elected in the 1892 election. He was defeated in the 1897 election. In 1891, he was appointed provincial treasurer in the cabinet of Charles-Eugène Boucher de Boucherville and served in the cabinet of Louis-Olivier Taillon.
After being ill and spending time to recover in Atlantic City, New Jersey and Denver, Colorado, Hall moved to Calgary, Alberta where he became editor-in-chief of the Calgary Herald. He also opened a law firm, called Hall and Stewart. He became a member of the Calgary Municipal Council and a city solicitor. He died in Calgary in 1909 and was buried in Montreal.