John Henry Haines Root (October 17, 1908 – November 17, 1991) was an Ontario farmer and political figure.
He represented Wellington North and then Wellington—Dufferin in the Legislative Assembly of Ontario from 1951 to 1975 as a Progressive Conservative member.
He was born in Erin Township, Ontario, the son of David Oscar Root.
He was named to the Ontario Water Resources Commission in 1961 and later served as its chairman.
This article about an Ontario Progressive Conservative Party MPP is a stub.