Lars Henrik Andreas Barruk (b. 26 February 1961) is a Sámi language consultant and teacher known for his work documenting and revitalizing the Ume Sámi language. Barruk is one of the few academics working with Ume Sámi, and he has taught courses on the language at Umeå University. He served on a Saami Council working group to develop an Ume Sami orthography together with the linguists Ole Henrik Magga, Pekka Sammallahti, and ; and he worked with older Ume Sámi speakers on a 4,300-word Ume Sámi dictionary.