Thomas FitzMaurice, 1st Earl of Kerry PC (Ire) (1668 – 16 March 1741) was an Irish peer and politician.

He was created Earl of Kerry on 17 January 1723, together with the subsidiary title Viscount Clanmaurice, both in the Peerage of Ireland.

He had some military experience, and even his grandson Lord Shelburne, in a notably hostile character sketch, admitted that he showed courage and talent as a soldier.

He was notorious for his hot temper, and even in an age when duelling was commonplace, he was reprimanded, and briefly imprisoned, for challenging John Methuen, the Lord Chancellor of Ireland to a duel.

His picture of his grandfather must be treated with caution: it is based largely on other people's recollections of him since William was not quite four years old when the old man died, and thus can barely have remembered him.