Sealdah is a neighbourhood of Central Kolkata in Kolkata district in the Indian state of West Bengal.

Sealdah Railway Station is one of India's major railway terminals serving the city of Kolkata. The other main railway stations in the Kolkata metropolitan area are Howrah, Shalimar, Kolkata and Santragachi. Over 1.5 million passengers use the station daily. It is an important suburban rail terminal. Kolkata Metro Line 2 passes through Sealdah with the new underground Sealdah metro station.