Charles O'Gara (born 1699 in Saint-Germain, d. 1777) was a French-born courtier of Irish parentage who rose to prominence in the service of Leopold, Duke of Lorraine and later his son Francis I, Holy Roman Emperor.
Like the rest of his family he was a Jacobite who supported the return of Stuart rule to the British and Irish kingdoms.
[1] Charles was the fourth of five children born to Colonel O'Gara and his wife Mary Fleming.
When Francis the elder of these became Holy Roman Emperor in 1745, O'Gara was appointed an Imperial Counciller and a Chamberlain at the court in Vienna.
O'Gara was rewarded for his service by being made a Count of the Holy Roman Empire and a Knight of the Golden Fleece.