Patna Junction is a major railway station in the capital city of Patna in the Indian state of Bihar. It is the main railway station serving Patna. It falls under the Danapur division of the East Central Railway zone of the Indian Railways. Patna Junction is one of the busiest railway stations of the country.

Danapur railway division is one of the five divisions of East Central Railway (ECR), a zone of the Indian Railways located at Danapur in Patna district of Bihar state in eastern India. The other railway divisions are Sonpur, Samastipur, Pandit Deen Dayal Upadhyaya and Dhanbad. The revenue of division in 2014-15 fiscal was ₹900 crore (US$110 million).