| Redbridge Ilford South |
Constituency first used at the February General election of 1974 (28/02/1974). |
| Redbridge Wanstead and Woodford |
Constituency first used at the February General election of 1974 (28/02/1974). |
| Redcar |
|
| Redditch |
|
| Regent's Park and Kensington North |
|
| Reigate |
Constituencies of same name also existed 1832-1868 and 1885-1974¹. |
| Reigate |
Disenfranchised for bribery in 1867. Constituency of same name also existed 1885-1974¹, and another of the same name reformed 1983. |
| Reigate |
Constituency first used at the February General election of 1974 (28/02/1974). Full name (in Craig 2,3,4) Surrey, Reigate. Constituency of same name also existed 1832-1868, and another of the same name reformed 1983. |
| Reigate and Banstead |
Constituency first used at the February General election of 1974 (28/02/1974). |
| Renfrewshire |
|
| Renfrewshire East |
Constituency of same name formed 2005. |
| Renfrewshire East |
Constituency of same name also existed 1950-1983. |
| Renfrewshire Eastern |
|
| Renfrewshire West |
Seat of same name reformed 1997 |
| Renfrewshire Western |
|
| Renfrew West and Inverclyde |
|
| Rhondda |
Constituency first used at the February General election of 1974 (28/02/1974). Constituency of same name also existed 1885-1918. |
| Rhondda |
Full name (in Craig 2) Glamorganshire, Rhondda. Constituency of same name reformed in 1974¹. |
| Rhondda and Ogmore |
Welsh name: Rhondda ac Ogwr. |
| Rhondda East |
Constituency first used at the February General election of 1974 (28/02/1974). |
| Rhondda West |
Constituency first used at the February General election of 1974 (28/02/1974). |
| Ribble Valley |
|
| Richmond and Barnes |
|
| Richmond and Northallerton |
|
| Richmond Park |
|