Northeast Line or North East Line could refer to any railway or metro lines:
- North East MRT line of Singapore's MRT
- North East railway line, a railway line in Victoria, Australia
- Gold Line (MARTA), formerly known as the Northeast Line, in Atlanta, Georgia, United States
- Northeast Corridor, an electrified railroad line serving the Northeast megalopolis in the United States
- Northeast Corridor Line, an NJ Transit commuter rail line
- Northeast Ring line (BCR), a train line of Beijing Suburban Railway