William Johnston Almon

William Johnston Almon (27 January1816 – 19 February 1901) was a Canadian physician and parliamentarian.

Born in Halifax, Nova Scotia, Almon received his medical education from the University of Edinburgh and the University of Glasgow. He was awarded a medical degree from the later university in 1838. By 1839, Almon had returned to Halifax and had an established a medical practice. He is noted for being among the first physicians in North America to employ chloroform as a surgical anesthetic, a procedure he first performed on 5 February 1848, within 90 days of the first-ever application of chloroform as an anesthetic by James Young Simpson in Edinburgh. Almon was also a pivotal figure in the establishment of the first hospital in Halifax, and helped found, and served three terms as president of, the Medical Society of Nova Scotia.

As a Liberal-Conservative first elected in the Canadian federal election of 1872, Almon served one term as a Member of Parliament representing the electoral district of Halifax in the province of Nova Scotia. Although he did not stand again in 1874, he was on 15 April, 1879 appointed to the Canadian Senate on the recommendation of Sir John A. Macdonald. He represented the senatorial division for Halifax until his death.