The 2600 Class is a type of diesel multiple unit operated on the Irish railway network by Iarnród Éireann, used mainly for short-haul Commuter services.

The 2600 Class were the first set of diesel railcars purchased by Iarnród Éireann, who for several years had only run multiple units on the electrified DART service.

They were the very last Iarnród Éireann rolling stock to be shipped with the firm's original IR logo, though this was replaced with the IÉ version shortly after the trains entered service.

[2] The 2600 Class trains were initially deployed on the brand new Dublin-Kildare Arrow service, starting on 16 May 1994 (now rebranded South Western Commuter).

All 2600 Class sets carry the new Iarnród Éireann-Irish Rail logo and silver InterCity livery since August 2013.