The Córas Iompair Éireann (CIÉ) 2600 Class were Associated Equipment Company (AEC)–engined diesel multiple units (normally termed railcars in Ireland) that operated InterCity and suburban services on the CIÉ system between 1952 and 1975. Many were later converted for push–pull operation with diesel locomotives, finally being withdrawn when displaced by the electric Dublin Area Rapid Transit service in the mid-1980s.
