| County Dublin | |
|---|---|
| Former county constituency for the House of Commons | |
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| County | County Dublin |
| Major settlements | Blanchardstown, Swords, Balbriggan |
| 1801–1885 | |
| Seats | 2 |
| Created from | County Dublin constituency (IHC) |
| Replaced by | North Dublin and South Dublin |
County Dublin was a parliamentary constituency in Ireland, which returned two Members of Parliament (MPs) to the House of Commons of the Parliament of the United Kingdom.
The constituency was created under the Acts of Union 1800, replacing the constituency of County Dublin in the Irish House of Commons. Under the Redistribution of Seats Act 1885, before the 1885 general election, it was replaced with two new county divisions, South Dublin and North Dublin.