"Tom's Diner" is a song by American singer and songwriter Suzanne Vega. Written on November 18, 1981, it was first released as a track on the January 1984 issue of Fast Folk Musical Magazine.
Originally featured on her second studio album, Solitude Standing (1987), it was released as a single in Europe only in 1987 following the success of her single "Luka". It was later used as the basis for a remix by the British group DNA in 1990, which reached No. 1 in Austria, Germany, Greece and Switzerland.
The song is also known for its use in testing various digital compression schemes during the development of the MP3, earning Vega the title of "Mother of the MP3".
The "Tom's Diner" of the song is Tom's Restaurant in New York City, a mid-20th-century diner on the northeast corner of Broadway and West 112th Street. Singer and songwriter Suzanne Vega was reputedly a frequent patron during the early 1980s when she was a student at nearby Barnard College. The diner later became famous as the location used for the exterior scenes of Monk's Café in the popular 1990s television sitcom Seinfeld.
Vega wrote the song based on a comment by her friend Brian Rose, a photographer, who mentioned that in his work, he sometimes felt as if "he saw his whole life through a pane of glass, and [...] like he was the witness to a lot of things, but was never really involved in them". She attempted to think and write in this fashion (including a male perspective) while sitting at Tom's Restaurant.