thumb|125px|The Honourable William James Roche, PC
William James Roche, (30 November 1859 – 30 September 1937) was a Canadian politician and Conservative Member of Parliament for the Manitoba riding of Marquette in the House of Commons of Canada from 1896 to 1917.
Born in Clandeboye, Canada West,
In 1892, Roche ran unsuccessfully for a seat in the Manitoba assembly.
He died in Ottawa at the age of 77.