This is a list of Local Government Districts in Northern Ireland by area.
| Rank | District | Area km² |
|---|---|---|
| 1 | Fermanagh | 1,876 |
| 2 | Omagh | 1,130 |
| 3 | Newry and Mourne | 902 |
| 4 | Strabane | 862 |
| 5 | Dungannon and South Tyrone | 784 |
| 6 | Armagh | 671 |
| 7 | Down | 647 |
| 8 | Ballymena | 632 |
| 9 | Cookstown | 622 |
| 10 | Limavady | 586 |
| 11 | Antrim | 577 |
| 12 | Magherafelt | 573 |
| 13 | Coleraine | 486 |
| 14 | Moyle | 480 |
| 15 | Banbridge | 453 |
| 16 | Lisburn | 447 |
| 17 | Ballymoney | 418 |
| 18 | Derry | 387 |
| 19 | Craigavon | 378 |
| 20 | Ards | 376 |
| 21 | Larne | 336 |
| 22 | Newtownabbey | 151 |
| 23 | Belfast | 115 |
| 24 | Castlereagh | 85 |
| 25 | Carrickfergus | 82 |
| 26 | North Down | 81 |
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