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The Northside
Dublin, north of the Liffey
O'Connell Bridge, looking northeast
Country	Ireland
County	County Dublin
City	Dublin

The Northside^[1] (Irish: Taobh Ó Thuaidh) in an informal but commonly used term to describe the part of the city of Dublin that lies to the north of the River Liffey, and extending into part of North County Dublin. The part outside the city is within the county of Fingal, a local government area established in 1994. While it is sometimes regarded as less wealthy than the city's Southside, the Northside was originally the home of the city's upper classes and the more privileged of the two.^[2] Today, some of the wealthiest areas in Ireland, such as Malahide,^[3] Howth,^[4] Clontarf,^[5] and Castleknock, lie north of the river.^[6]

Not being an administrative area, the Northside is variously defined. It generally includes those parts of Dublin city that lie north of the River Liffey. County Dublin settlements north of the M50 motorway, such as Swords and Malahide, which have developed into suburbs of Dublin city, are usually included.^[7]

James Joyce set several of the Dubliners stories on the Northside, reflecting his childhood sojourns in Drumcondra and Fairview. Among the more recent best-selling writers to have written extensively about the Northside are Dermot Bolger and Booker Prize winner Roddy Doyle, who set several of his novels in the fictional Northside area of Barrytown.

The soap opera Fair City is set in Carrigstown, a fictional suburb within Dublin's Northside. According to the RTÉ Guide, Carrigstown is bounded by Drumcondra to the north, the city centre to the south, East Wall to the east and Phibsboro to the west.^[8]

The Northside includes Dublin city centre north of the Liffey, of whose many streets some are noted below, and districts such as Smithfield and Summerhill. Some older districts, such as Oxmantown, no longer exist. Beyond the centre, areas of the Northside include those listed below, most (at least two names were invented in the 1960s) of the names being of long heritage, though until recently many were rural townlands. Some are distinct suburbs or villages; others are parts of larger areas:

The area is administered both by Dublin City Council (formerly Dublin Corporation) and Fingal County Council, responsible for 84% and 16% respectively of the land area which lies inside the M50 motorway and north of the River Liffey (excluding the Howth peninsula).

Traditionally, Dublin postal districts on the Northside begin with odd numbers, while those on the Southside begin with even numbers. For example, O'Connell Street is in Dublin 1, whereas the outer suburb of Ballymun is in Dublin 11. An exception is the Phoenix Park, which is on the Northside but is part of Dublin 8. The reason for this is explained by historian Pat Liddy: "Long before there were postal codes, the James's Street Postal Sorting Office looked after the Phoenix Park, because it was considered to be closer and more convenient than Phibsborough. James's Street continued in this role when the postal codes were introduced, so Dublin 8 it had to be."^{[citation needed]}

The Eircode system adopted for all postal addresses in Ireland in 2014 adapted the old postal districts for addresses in Dublin, with addresses in Dublin 1 having a prefix beginning D01, and Dublin 11 having a prefix beginning D11, etc. The outer edges of the Northside within the city and Fingal also contain all but one of the K Eircode areas. Swords, for example, is in Dublin K67, whereas Malahide is in the K36 area. The single exception to the rule is Lucan, which is in south-west Dublin and is designated as Dublin K78.^[9] Another quirk of the postal district system on the Northside is that the town of Clonee in Dublin's neighbouring County Meath has the Eircode of D15.^[10]

An example of an address including the traditional Dublin postal district

The Gresham Hotel

23 Upper O'Connell Street

Dublin 1

D01 C3W7.

An example of an address from outside the traditional postal districts:

Coffee Works

62 Main Street

Swords

County Dublin

K67 RX94.

Well-known places and sights on the Northside include:

Major transport hubs include Connolly Station, Busáras (the national central bus station) and Dublin Airport. The main shopping area in the north inner city, and the busiest shopping street in Ireland, is Henry Street/Mary Street, just off O'Connell Street. Three of the five city-centre shopping centres are located on the Northside: the Jervis Shopping Centre, the Ilac Centre/Moore Street Mall, and the Irish Life Shopping Mall, along with Dublin's largest out-of-town centre, at Blanchardstown, and others at Swords, Coolock, Charlestown in northern Finglas, and Donaghmede. The Cineworld (UGC) cinema on Parnell Street is the largest cinema in Ireland with seventeen screens, while the Savoy, located on O'Connell Street and operated by IMC, is one of Ireland's oldest cinemas.

Institutions of higher education include the Grangegorman Campus of Technological University Dublin, the newest university established in Dublin, and Dublin City University, with its campus located primarily in Glasnevin and Drumcondra.

State bodies based on the Northside include Met Éireann (the national meteorological office), the Central Fisheries Board, Enterprise Ireland (the national enterprise and trade board), the National Standards Authority of Ireland, Sustainable Energy Authority of Ireland, the Marine Institute, the Department of Defence, the Department of Education, and the Department of Housing, Local Government and Heritage.^{[citation needed]}