The Mounds of Mundberg were the burial mounds in Rohan of those who fell in the Battle of the Pelennor Fields.

They were located near Minas Tirith and the river Anduin. Inside the long green barrows were laid all the warriors who were slain during the battle, both Dunedain and Rohirrim.

There was a lay created in Rohan which sings of the mounds. Two lines specifically mention the burials:

"in the Mounds of Mundburg under mould they lie
with their league-fellows, lords of Gondor."