Which real restaurant provided the exterior for Seinfeld's Monk's Cafe?

Tom’s Restaurant provided the exterior for Seinfeld’s fictional Monk’s Cafe.

The real diner stands at Broadway and West 112th Street near Columbia University in New York City. Seinfeld used its recognizable exterior as a visual stand-in, while the café’s interior scenes were filmed on a soundstage in Los Angeles. The location first appears as Monk’s in the first-season episode “The Robbery.”

Viewers sometimes assume the entire restaurant was filmed at Tom’s, but the booths, counter, and regular gathering place seen inside the show were a constructed set. The production also altered how the sign appeared: early episodes showed more of the neon “Tom’s” lettering, while later shots cropped or dimmed that part of the sign.

Tom’s has another major pop-culture connection: it inspired Suzanne Vega’s 1987 song “Tom’s Diner.” The fictional café’s name, meanwhile, came from a poster of jazz musician Thelonious Monk in the writers’ office.