John Herron (born October 21, 1964) is a Canadian politician and former Red Tory, and now a Blue Liberal,[1] who served as the Progressive Conservative member of Parliament (MP) for the riding of Fundy Royal from 1997 to 2004.

Herron was one of a handful of new Progressive Conservative "young Turk" parliamentarians – along with Scott Brison, André Bachand, and Peter MacKay – considered the youthful leadership material that would restore the ailing PC Party.

Herron concluded that there was a lack of alignment between the two on a series of public policy matters, and later teamed with Scott Brison to support Joe Clark's candidacy and his subsequent return as leader of the Progressive Conservative Party of Canada.

Herron was criticized following the 2003 PC leadership election when he abandoned the campaign of Scott Brison to support Peter MacKay before the second ballot.

On February 6, 2004, he announced that he would sit for the remainder of the Parliamentary session as an "independent Progressive Conservative", and that he would run in the 2004 election as a candidate for the Liberal Party of Canada.