Paul Wexler (born November 6, 1938, Hebrew: ???? ??????, ['paul 'veksler]) is an American-born Israeli linguist, and Professor Emeritus of linguistics at Tel Aviv University.
His research fields include historical linguistics, bilingualism, Slavic linguistics, creole linguistics, Romani (Gypsy) and Jewish languages.
Wexler is known in Yiddish linguistics mainly for his theory that Yiddish is ultimately derived from Judaeo-Slavic from a genetic-linguistic perspective, a theory that has been widely rejected by other Yiddish linguists.Wexler notes that the Yiddish language structure provides evidence that Jews had "intimate contact" with early Slavs in the German and Bohemian lands as early as the 9th century.