Elmar Muuk (26 December 1901 – 20 November 1941) was an Estonian linguist and author of a number of dictionaries and textbooks of the Estonian language, and was, together with Johannes Voldemar Veski and Johannes Aavik, responsible for development of Estonian as a modern European language.
| Elmar Muuk | |
| Birth Date: | December 26, 1901 |
| Birth Place: | Eivere, Järva County, Russian Empire (now Estonia) |
| Death Place: | Sevurallag, Sverdlovsk Oblast, Soviet Union (now Russia) |
| Nationality: | Estonian |
| Occupation: | Linguist, author |
Muuk was born in Eivere village, Järva County. He took part of the Estonian War of Independence. Muuk was arrested by NKVD on 14 June 1941 in Tallinn and died in imprisonment in Sevurallag, Sverdlovsk oblast.