Bangaon Junction is a Kolkata Suburban Railway junction station on the Sealdah–Bangaon line and Ranaghat–Bangaon line. It is located in North 24 Parganas district in the Indian state of West Bengal. It serves Bangaon and its surrounding areas.

The Kolkata Suburban Railway is a set of suburban and regional rail services serving the Kolkata metropolitan area and its surroundings in India. It is the largest suburban railway network in the country by number of stations and track length, and also one of the largest in the world. There are five main lines and nineteen branch lines. It operates more than 1,500 services, carrying 3.5 million people daily and 1.2 billion people every year. It runs from 03:00 am until 02:00 am and fares range from Rs.5 to Rs.25. The system uses 25 kV 50 Hz AC power supply and runs on 5 ft 6 in broad gauge track. It has interchange stations with the Kolkata Metro at various locations.