Bukk /bʊk/ is a family of languages, also known as bukkean languages, which were spoken in what was northern Tarnaria and in Overpol Expanse, later Overpol Region. They are using the bukkean tone modifiers of the Root Tongue.

Bukk influences are seen in many names which would pronounce 'o' as 'u' in names such as Done, Ton and Dod. It is also customary to see “u” denote what would be pronounced as “oo”, just like the name of the language itself, bukk pronounced as the word “book”.