Clement Fitzleones (died c. 1509) was an Irish lawyer and judge. He held the offices of Serjeant-at-law (Ireland) and Attorney-General for Ireland and was briefly Deputy to the Chief Baron of the Irish Exchequer. In 1502 Fitzleones was made Attorney General and in 1506 he was promoted to what was then the more senior office of King's Serjeant. In 1509 Patrick Finglas was appointed Serjeant. While two serjeants occasionally acted at the same time, as a rule there was only one, which suggests that Fitzleoenes had recently died.