Alexander Henderson, KC (March 13, 1860 – December 13, 1940)[1] was a lawyer, judge and political figure in British Columbia and Yukon.

He represented New Westminster City in the Legislative Assembly of British Columbia from 1898 to 1900.

[2] He was born in Oshawa, Canada West, the son of Alexander Henderson, and was educated there, at the University of Toronto and at Osgoode Hall.

Henderson practised law in Oshawa until 1891 when he moved to New Westminster, British Columbia.

[2] In 1895, Henderson married Susan Crawford, the daughter of William McCraney.