The Sindarin, Khuzdul, and Gargun each speak their own languages (Sindar, Khuzan, and Gargun respectively). Some Ivashu also speak their own language, Ivashi. See Scripts of Hârn. Human languages on Hârn are:
- Hârnic: The language, in one dialect or another, spoken by the majority of Hârnians.
- Jarinese: An almost dead language used by the early Jarin settlers. Modern dialects of Jarinese are spoken by some tribes and by some stubborn Jarin.
- Orbaalese: The mixture of Ivinian, Hârnic, and Jarinese commonly spoken in Orbaal. Most Ivinians speak their own language (Ivinian) to each other.
- Ivinian: The native tongue of the region of Ivinia, from where the Orbaalese conquerers came.