Herbert Stone MacDonald (February 23, 1842 – January 8, 1921) was an Ontario lawyer, judge and political figure.

He represented Leeds South in the Legislative Assembly of Ontario as a Conservative member from 1871 to 1873.

MacDonald was a member of the Orange Order, serving as grand master for Ontario East.

In October 1873, MacDonald resigned his seat in the legislative assembly to become junior judge in the county court for Leeds and Grenville.

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