James O'Hara, 2nd Baron Tyrawley and Kilmaine, PC (1682 - July 14, 1774) was a British military officer. He was given the rank of field marshal on June 10, 1763. His father was Charles O'Hara, 1st Baron Tyrawley, a military officer as well. Events March 11 – Chelsea hospital for soldiers is founded in England May 6 - Louis XIV of France moves his court to Versailles. ... July 14 is the 195th day (196th in leap years) of the year in the Gregorian Calendar, with 170 days remaining. ... 1774 was a common year starting on Saturday (see link for calendar). ... Note: This article is about the military usage of the word marshal. For other usages, see the end of this article. ... June 10 is the 161st day of the year in the Gregorian calendar (162nd in leap years), with 204 days remaining. ... 1763 was a common year starting on Saturday (see link for calendar). ...

O'Hara commanded the 7th Regiment of Foot, 4th Dragoon Guards, 2nd Horse Grenadier Guards, 3rd Horse Guards, 10th Regiment of Foot, 14th Regiment of Dragoons, 3rd Regiment of Dragoons, and the Coldstream Guards, successively.