Coolock (Irish: An Chúlóg, meaning 'the little corner') is a large suburban area, centred on a village, on Dublin city's Northside in Ireland.

Coolock lies at the centre of the majority working-class Northside suburbs such as Kilbarrack, Donaghmede and the Edenmore part of Raheny, and itself includes localities such as Ayrfield, Bonnybrook, Darndale, Priorswood, Greencastle and Kilmore West.

The majority of Coolock, excluding Ayrfield, was built-up by the then city authority, Dublin Corporation, as part of a programme of the phased inner-city slum clearance (between, roughly, 1952 and 1987)[citation needed].

Dublin City Council calculates[citation needed] that addresses containing "Coolock" comprise the largest stock of local authority houses within its jurisdiction and the area is central to the linear range of local authority building that took place between the 1960s and the 1980s across Dublin's Northside - i.e. Ballymun including Poppintree, Kilmore, Coolock, Edenmore, Kilbarrack and Donaghmede.

There are a number of roads named after the 1969 Moon landing, including Tranquility Grove (after Tranquility Base), Eagle Park (Lunar Module Eagle), Apollo Way (Apollo 11), Armstrong Walk (Neil Armstrong) and Aldrin Walk (Buzz Aldrin).

[8] Famous historical figures linked to the area included Henry Grattan of Belcamp Park, and the novelist Charles Lever.

The Coolock area was featured extensively during location shooting for the 1991 film The Commitments, directed by Alan Parker and starring a mainly unknown cast at the time.