| Trans National Place | |
| Location: | 115 Federal Street, Boston, Massachusetts |
| Coordinates: | 42.3545°N -71.057°W |
| Status: | Cancelled[1] and superseded |
| Building Type: | Office, Garden, Observation, Restaurant, Retail |
| Architect: | Childs Bertman Tseckares Inc. |
| Developer: | Trans National Properties, Steve Belkin |
Trans National Place, also known as 115 Winthrop Square, was a proposed supertall skyscraper in Boston, Massachusetts, US. Original designs were completed by architect Renzo Piano (with Boston firm Childs Bertman Tseckares Inc.) who later left the project in March 2007.[2] Trans National Place was intended to stand as the tallest building in Boston, Massachusetts, and New England, surpassing the 60-story John Hancock Tower by 15 stories and at least 210abbr=offNaNabbr=off to become the tallest building in the city. The developer was local businessman Steve Belkin, who also owns an adjoining mid-rise building, which would have been torn down as part of the project.
The tower was cancelled in 2008[1] amid a declining commercial real estate market and after the Federal Aviation Administration objected to the building's proposed height, deeming the structure a possible flight obstruction to the air traffic of nearby Logan International Airport.[3] The project was superseded by the Winthrop Center, a proposed skyscraper for which a design was selected in 2016.