The Dublin Suburban Rail network, (now branded DART/Commuter), is a railway network that serves the city of Dublin, Ireland, most of the Greater Dublin Area and outlying towns. The system is made up of five lines:

• Northern Commuter - Dublin Pearse to Dundalk (with one early morning weekday service to Newry).
• South Eastern Commuter - Dublin Connolly to Gorey.
• South Western Commuter - Dublin Heuston to Portlaoise.
• Western Commuter - Dublin Pearse / Docklands to Longford.
• Dublin Area Rapid Transit (DART) - Greystones to Howth/Malahide.