Constituencies
| Name | Notes |
|---|---|
| Tyrone | |
| Tyrone East | |
| Tyrone Mid | |
| Tyrone North | |
| Tyrone North East | |
| Tyrone North West | |
| Tyrone South | |
| Tyrone West | |
| Ulster Mid | Constituency first used at the February General election of 1974 (28/02/1974). Probably the same constituency as Mid-Ulster (q.v.) - difference in terminology between Craig and Times sources. |
| University of Wales | Non-geographic constituency. |
| Unknown | Use this as a placeholder where the constituency for a period of service is not yet known. |
| Upminster | |
| Upper Bann | |
| Uxbridge | Constituency first used at the February General election of 1974 (28/02/1974). Full name (in Craig 2,3,4) Middlesex, Uxbridge. Constituency of same name reformed 1983. |
| Uxbridge | Constituency of same name also existed 1885-1974ยน. |
| Uxbridge and South Ruislip | |
| Vale of Clwyd | |
| Vale of Glamorgan | |
| Vale of York | |
| Vauxhall | |
| Vauxhall and Camberwell Green | |
| Wakefield | |
| Wakefield and Rothwell | |
| Wallasey | |
| Wallingford |