Max Vasmer (February 28, 1886 – November 30, 1962) was a Russian-born German linguist who studied problems of etymology of Indo-European, Finno-Ugric and Turkic languages and worked on history of Slavic, Baltic, Iranian, and Finno-Ugric peoples.

Vasmer was born of German parents in St. Petersburg and graduated from the St. Petersburg University in 1907. Since 1910, he delivered lectures there as a professor. During the Russian Civil War, he worked in the Universities of Saratov and Yuryev (Tartu). In 1921 he settled in Leipzig but later moved to Berlin. In 1938–39, he delivered lectures at Columbia University in New York City. It was there that he started to work on his magnum opus, the Etymological dictionary of the Russian language. He delivered the eulogy for Professor Aleksander Brückner in Berlin Wilmersdorf in 1939 and he took over the chair of Slavistic studies at the Berlin University.

In 1944, Vasmer's house in Berlin was bombed, and most of his materials perished. Nevertheless, Vasmer persevered in his work, which was finally published in four volumes by Heidelberg University in 1950–58 as Russisches Etymologisches Wörterbuch. Vasmer died in West Berlin on November 30, 1962.