Arnold Kask (10 August 1902, Pärnu – 30 July 1994, Tartu) was an Estonian linguist.[1]
In 1928 he graduated from the University of Tartu. Since 1944 he taught at the University of Tartu.[1]
In 1944 and from 1968 to 1982, he was the chairman of Mother Tongue Society. Since 1961 he was a member of Estonian Academy of Sciences.[1]
His main fields of research were Estonian dialects, Estonian literary language and its history.[1]