| Radnor District of Boroughs (1832 - 1885) |
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| Radnorshire (1832 - 1918) |
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| Reading (1832 - 1950) |
Constituency of same name also existed 1955-1974¹. |
| Reigate (1832 - 1867) |
Disenfranchised for bribery in 1867. Constituency of same name also existed 1885-1974¹, and another of the same name reformed 1983. |
| Renfrewshire (1832 - 1885) |
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| Richmond (Yorkshire) (1832 - 2024) |
Full name (in Craig 2,3,4) Yorkshire (North Riding), Richmond |
| Ripon (1832 - 1983) |
Full name (in Craig 2,3,4) Yorkshire (West Riding), Ripon |
| Rochdale (1832) |
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| Rochester (1832 - 1918) |
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| Roscommon (1832 - 1885) |
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| Ross and Cromarty (1832 - 1983) |
Full name (in Craig 3,4) Inverness-shire and Ross and Cromarty, Ross and Cromarty |
| Roxburghshire (1832 - 1918) |
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| Rutlandshire (1832 - 1918) |
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| Rye (1832 - 1983) |
Full name (in Craig 2,3,4) Sussex (East), Rye |
| Salford (1832 - 1885) |
Seat of same name reformed 1997. |
| Salisbury (1832) |
Full name (in Craig 3,4) Wiltshire, Salisbury |
| Sandwich (1832 - 1885) |
Disfranchised for corruption. Seat vacant between August 1880 and 1885 due to corrupt practices. Constituency abolished and absorbed into Eastern Kent. |
| Scarborough (1832 - 1918) |
Constituency of same name also existed 1974¹-1997. |
| Selkirkshire (1832 - 1868) |
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| Shaftesbury (1832 - 1885) |
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| Sheffield (1832 - 1885) |
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| Shoreham (1832 - 1885) |
Constituency of same name also existed 1974¹-1997. |
| Shrewsbury (1832 - 1983) |
Full name (in Craig 3,4) Shropshire, Shrewsbury |
| Shropshire Northern (1832 - 1885) |
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| Shropshire Southern (1832 - 1885) |
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