The name of one of the younger Ents found in Fangorn Forest, in J.R.R. Tolkien's Middle Earth. Ents are very particular about being hasty. Quickbeam gained his name by answering an elder Ent before he was finished with his question.

Quickbeam was in charge of entertaining Merry (Meriadoc Brandybuck) and Pippin (Peregrin Took) while the Ents of Fangorn discussed their plans against the coming of Evil.

see also: Entwife, Enting, Huorn, Treebeard