Máel Mórda mac Murchada (died 23 April 1014 AD) was King of the province of Leinster in Ireland. Son of and brother of Gormflaith, he belonged to the Uí Fáeláin sept of the Uí Dúnlainge, whose lands lay around Naas on the middle reaches of the River Liffey, in modern County Kildare. Máel Mórda is best known as an enemy of Brian Boru, they fought at the Battle of Glenmama on 30 December 999 and both men died in the Battle of Clontarf, fought on Good Friday in 1014. According to the Annals of Tigernach, Máel Mórda's son "Cearball mac Mael Mordha, crown-prince of Leinster" was killed in 1017.