Christopher Fleming, 8th Baron Slane

1474–1517) was an Irish nobleman, who was Lord High Treasurer of Ireland from 1514 until his death.

Christopher was the eldest son of James Fleming, 7th Baron Slane.

His mother was Elizabeth Welles (died 1506), daughter of William Welles, Lord Chancellor of Ireland, and his wife Anne Barnewall, and widow of the 3rd Baron Killeen.

He married firstly Lady Eilis FitzGerald, daughter of Gerald FitzGerald, 8th Earl of Kildare[1] by his first wife Alison FitzEustace, daughter of Rowland FitzEustace, 1st Baron Portlester and his third wife Margaret d'Artois.

In 1512, on the site of an earlier abbey at Slane, he built a friary and college for the Franciscan order.