List of Major League Baseball leaders in home runs by pitchers

In baseball, a home run (HR) is typically a fair hit that passes over an outfield fence or into the stands at a distance from home plate of 250 feet or more, which entitles the batter to legally touch all bases and score without liability. Atypically, a batter who hits a fair ball and touches each base in succession from 1st to home, without an error being charged to a defensive player, is credited with an inside-the-park home run.

Source: Wikipedia — List of Major League Baseball leaders in home runs by pitchers (CC BY-SA 4.0)