| Antrim (1922 - 1950) |
Constituency of same name also existed 1832-1885. |
| Antrim East (1922) |
Constituency of same name also existed 1885-1922. |
| Antrim North (1922) |
Constituency of same name also existed 1885-1922. |
| Antrim South (1922) |
Constituency of same name also existed 1885-1922. |
| Armagh [county] (1922 - 1983) |
Constituency of same name also existed 1832-1885. |
| Belfast East (1922) |
Constituency of same name also existed 1885-1918. |
| Belfast North (1922) |
Constituency of same name also existed 1885-1918. |
| Belfast South (1922 - 2024) |
Constituency of same name also existed 1885-1918. |
| Belfast West (1922) |
Constituency of same name also existed 1885-1918. |
| Down (1922 - 1950) |
Constituency of same name also existed 1832-1885. |
| Fermanagh and Tyrone (1922 - 1950) |
|
| Londonderry [county] (1922 - 1983) |
Constituency of same name also existed 1832-1885. |