|345 Park Avenue|
|Owner||Rudin Management Company|
|Roof||634 ft (193 m)|
|Floor area||1,900,000 square feet (180,000 m2)|
|Design and construction|
|Architect||Emery Roth & Sons|
345 Park Avenue is a 634-foot (193 m) skyscraper in the Midtown neighborhood of Manhattan, New York City that occupies a full city block with the front on Park Avenue, the back on Lexington Avenue, between 51st and 52nd Streets.
It is built on the site of the Hotel Ambassador. The famous hotel was built in 1921. It was sold to Sheraton Hotels in 1958 and renamed the Sheraton-East. It was demolished in 1966.