The General Post Office, Kolkata is the central post office of the city of Kolkata, India and the chief post office of West Bengal. The post-office handles most of the city's inbound and outbound mail and parcels. Situated in the B.B.D. Bagh area, the imposing structure of the GPO is one of the landmarks in the city.
The site where the GPO is located was actually the site of the first Fort William. An alley beside the post office was the site of the guardhouse that housed the infamous 1756 Black Hole of Calcutta (1756). The General Post Office was designed in 1864 by Walter B. Grenville (1819-1874), who acted as consulting architect to the government of India from 1863 to 1868.