Northern line (disambiguation)

The Northern line is a London Underground line.

Northern line can also refer to:

United Kingdom

 * North London line, part of the London Overground
 * Northern City Line, between Moorgate and Finsbury Park
 * Northern line (Merseyrail)

Elsewhere

 * Nordland Line, Norway
 * Northern Line (Cape Town)
 * Northern Line (İZBAN), Turkey
 * Northern Line (SRT), Thailand
 * Northern line (Sri Lanka)
 * T9 Northern Line (Sydney), Australia
 * Northern Commuter line, Dublin
 * Linha do Norte (English: Northern Line), a railway line in Portugal, connecting Lisbon at Santa Apolónia to Porto at Campanhã

Other uses

 * Northern Line (group)
 * Northern Airport Line, China
 * Northern Limit Line, the maritime border between North and South Korea
 * The Northern Line, a magazine