The subject of this article originates from non-canonical sources. To find out about what is considered "canon" see LOTR:Canon.
Matum was an Uruk-hai of Saruman who participated in the War of the Ring. He does not appear in the books or movies but was created for the purpose of The Lord of the Rings Online video game. He can be found in the Ring of Isengard in Nan Curunír.