Triboro Hospital for Tuberculosis or Triboro Tuberculosis Hospital, later simply Triboro Hospital and now known as "Building T" or the "T Building", is a former municipal tuberculosis sanatorium and later a general hospital located on the campus of Queens Hospital Center in Jamaica, Queens, New York City. Completed in 1941, it was merged with the adjacent Queens General Hospital to form Queens Hospital Center in the 1950s, and converted into a general hospital by the 1970s. Now primarily used for administrative purposes, several plans have been proposed to reuse the site, or to preserve the building as a historic landmark. On January 31, 2019 the hospital was listed on the National Register of Historic Places.