|Grinnah is a concept which has only appeared in an adaptation of the works of J.R.R. Tolkien.|
|Death||T.A. 2941 |
Grinnah appeared to be a significant member of the Goblin Army, as he directly reported to the Great Goblin when they captured Thorin and Company. When Gandalf arrived to rescue the Dwarves and they took up arms to fight their way out, Grinnah was stabbed to death by Kíli.