John Albert Sexsmith (April 22, 1866 – February 6, 1943) was a farmer and political figure in Ontario, Canada.
He represented Peterborough East in the House of Commons of Canada from 1908 to 1917 as a Conservative and from 1917 to 1921 as a Unionist Party member.
[1] He was born in Belmont Township, Canada West, the son of Thomas Sexsmith, and was educated there.
He served on the township council for Belmont from 1893 to 1897 and was reeve from 1899 to 1905.
Sexsmith ran unsuccessfully for a seat in the House of Commons in 1900 and 1904.