The Rohirrim speak Rohirric in J.R.R. Tolkien’s mythology.
Rohirric is the language of the people of Rohan, the horse-lords who live in the green land north of Gondor. Tolkien generally represents Rohirric in The Lord of the Rings through forms resembling Old English. This reflects the cultural relationship he created between the Rohirrim and the Anglo-Saxon traditions that fascinated him as a philologist.
In the narrative, the Common Speech is used widely, so readers usually encounter translations or adapted names rather than extended conversations in Rohirric. Names such as Éomer, Théoden, Éowyn, and Meduseld contribute to the language’s distinctive presentation.
Rohirric is different from Sindarin, an Elvish language; Khuzdul, the secret language of the Dwarves; and the Black Speech, created by Sauron for his servants. The language is also sometimes discussed as the “language of Rohan,” but Rohirric is the standard name used for it.