Jay Ungar is an American musician and composer.
Ungar was born in the Bronx, (New York City), the son of immigrant parents from Eastern Europe. He frequented Greenwich Village music venues during his formative period, and was a founder member of Cat Mother and the All Night Newsboys & the Putnam String County Band. He is best known for Ashokan Farewell, originally composed as a waltz which was played at his "Fiddle & Dance" music camp, located at the SUNY New Paltz Ashokan Field Campus, which was used as the theme tune to Ken Burns documentary, The Civil War. The tune became so popular that it won a Grammy award and reached the top
In 1991, Ungar married fellow-musician Molly Mason, whom he had first met during the 1970s, and they continue to perform together, with their band, Swingology.