John Thomas Grange (January 30, 1837[1] – April 20, 1924) was an Ontario merchant and political figure.

He represented Lennox in the Legislative Assembly of Ontario as a Conservative member from 1871 to 1879.

The son of William Grange, he was born in Nepanee, Upper Canada in 1837.

Grange ran unsuccessfully for a seat in the Canadian House of Commons in 1867.

This article about an Ontario Progressive Conservative Party MPP is a stub.