William Mostyn (June 5, 1836– March 30, 1881) was an Irish-born doctor[1] and political figure in Ontario.
He represented Lanark North in the Legislative Assembly of Ontario from 1875 to 1879 as a Conservative member.
[2] Of Welsh descent, he was born in Elphin, County Roscommon and came to Upper Canada with his parents in 1837.
Mostyn was president of the North Lanark Agricultural Society.
This article about an Ontario Progressive Conservative Party MPP is a stub.