Steam locomotives operated in the United Kingdom with names beginning with R.
| Name | Railroad, # | Builder, s/n | Build date | Whyte type | Notes |
|---|---|---|---|---|---|
| R. B. Sheridan | LNWR 307 | Crewe | 4-6-0 | Became LMS 5628; wd 11/1934. | |
| Raby Castle | LNER 2825 | 4-6-0 | |||
| Racehorse | LNWR 1631 | 8/1911 | 4-4-0 | Became LMS 5365; rn 25365; wd 4/1937. | |
| Radley | SR 930 | 4-4-0 | |||
| Raglan Castle | GWR 5008 | 4-6-0 | |||
| Ragley Hall | GWR 4962 | 4-6-0 | |||
| Raleigh | LMS 5639 | 4-6-0 | |||
| Raleigh | LNWR 1527 | Crewe | 2/1888 | 2-4-0 | Became LMS 5006; wd 5/1925. |
| Ralph Brocklebank | LNWR 1159 | Crewe | 7/1913 | 4-6-0 | Became LMS 5906; rb 1928; wd 2/1937. |
| Ramillies | LNWR 1930 | 4/1900 | 4-4-0 | Rb 4/1916; became LMS 5142. | |
| Raven | SDR | 0-4-0ST | |||
| Ravenswood | LNER 9362 | 4-4-0 | |||
| Raymond Poincaré | LNWR 877 | Crewe | 4-6-0 | Became LMS 5645; wd 6/1936. | |
| Raynham Hall | LNER 2811 | 4-6-0 | |||
| Reading | GWR | 0-6-0 | |||
| Reading Abbey | GWR 5084 | 4-6-0 | |||
| Red Gauntlet | GWR | 4-4-0 | |||
| Red Star | GWR | 2-2-2 | |||
| Redgauntlet | GWR 2983 | 4-6-0 | |||
| Redgauntlet | LNER 9897 | 4-4-0 | |||
| Redruth | WCwR | 0-6-0ST | |||
| Regulus | GWR | 0-6-0 | |||
| Remembrance | LBSCR 333 | 4-6-4T | |||
| Remembrance | SR 2333 | 4-6-0 | |||
| Remus | GWR | 0-6-0 | |||
| Remus | SDR | 0-6-0ST | |||
| Rennie | GWR | 2-4-0 | |||
| Renown | LMS 5713 | 4-6-0 | |||
| Renown | LNWR 1918 | 7/1899 | 4-4-0 | Rb 6/1908 as the first of its class to become the new Renown class; became LMS 5131. | |
| Repton | SR 926 | 4-4-0 | |||
| Repulse | LMS 5725 | 4-6-0 | |||
| Resolution | LMS 5608 | 4-6-0 | |||
| Resolution | LNWR 1919 | 8/1899 | 4-4-0 | Rb 11/1919; became LMS 5160. | |
| Resolven Grange | GWR 6869 | 4-6-0 | |||
| Restormel Castle | GWR 5010 | 4-6-0 | |||
| Revenge | LMS 5714 | 4-6-0 | |||
| Revenge | LNWR 1959 | 3/1902 | 4-4-0 | Rb 4/1916; became LMS 5143. | |
| Reynard | LNWR 2184 | Crewe | 5/1897 | 2-4-0 | Wd 3/1919. |
| Rhea | GWR | 0-6-0 | |||
| Rhondda | GWR | 0-6-0 | |||
| Rhuddlan Castle | GWR 5039 | 4-6-0 | |||
| Rhyl | LMS 5521 | 4-6-0 | |||
| Richard Arkwright | LNWR 2282 | 2/1913 | 4-4-0 | Became LMS 5388; wd 4/1936. | |
| Richard Cobden | LNWR 940 | Crewe | 4-6-0 | Became LMS 5697; wd 7/1936. | |
| Richard Cobden | LNWR 974 | Crewe | 1/1890 | 2-4-0 | Wd 3/1919. |
| Richard Trevithick | LNWR 1650 | Crewe 4548 | 5/1906 | 4-4-0 | Became LMS 5251; wd 2/1928. |
| Rignall Hall | GWR 4963 | 4-6-0 | |||
| Ripon Hall | GWR 5914 | 4-6-0 | |||
| Rising Star | BR 70027 | Crewe | 10/1952 | 4-6-2 | Wd 6/1967; scr 11/1967. |
| Rising Star | GWR | 2-2-2 | |||
| River Avon | SR 790 | Ashford | 2-6-4T | Named in January 1925. | |
| River Cray | SR A800 | Ashford | 12/1926 | 2-6-4T | This locomotive derailed while pulling a loaded passenger train on August 21, 1927, approaching Sevenoaks; the locomotive survived with little damage but 13 people died and 43 others were severely injured in the trailing passenger cars. |
| River Esk | R&ER | Paxman | 1923 | 2-8-2 | 15" gauge |
| River Fal | GWR 3379 | 4-4-0 | |||
| River Frome | SR A890 | Ashford | 12/1925 | 2-6-4T | |
| River Irt | R&ER | Heywood | 1894 | 0-8-2 | 15" gauge |
| River Itchen | SR 803 | Ashford | 2-6-4T | ||
| River Mite | R&ER | Clarkson | 1966 | 2-8-2 | 15" gauge |
| River Plym | GWR 3376 | 4-4-0 | |||
| Rob Roy | GWR | 4-4-0 | |||
| Rob Roy | GWR 2988 | 4-6-0 | |||
| Rob Roy | LNER 9895 | 4-4-0 | |||
| Rob Roy | LNWR 1904 | 3/1899 | 4-4-0 | Became LMS 5111 but the number was never applied to the locomotive's livery; wd 5/1923. | |
| Robert Benson | LNWR 2176 | Crewe | 4/1896 | 2-4-0 | Became LMS 5061; wd 6/1927. |
| Robert Blake | SR 855 | 4-6-0 | |||
| Robert Burns | BR 70006 | Crewe | 4/1951 | 4-6-2 | Wd 5/1967; scr 11/1967. |
| Robert Burns | LNWR 2075 | Crewe | 4-6-0 | Became LMS 5616; wd 11/1934. | |
| Robert H. Selbie | LNER 6155 | 0-6-4T | Ex-LPTB | ||
| Robert L. Stevenson | LNWR 2283 | Crewe | 4-6-0 | Became LMS 5625; wd 12/1936. | |
| Robert Southie | LNWR 362 | Crewe | 4-6-0 | Became LMS 5610; wd 10/1933. | |
| Robert the Devil | LNER 4479 | 4-6-2 | |||
| Roberts | GWR | 2-4-0 | |||
| Roberts | GWR | 2-4-0T | |||
| Roberts | LNWR 737 | 2-4-0 | Became LMS 5100; rn Engineer Lancaster in 1923. | ||
| Robin Hood | BR 70038 | Crewe | 3/1953 | 4-6-2 | Wd 8/1967; scr 2/1968. |
| Robin Hood | GWR | 4-4-0 | |||
| Robin Hood | LNWR 1906 | 4/1899 | 4-4-0 | Rb 5/1917; became LMS 5149. | |
| Robin Hood | S&WR | 0-6-0T | |||
| Rocket | GWR | 2-2-2 | |||
| Rocket | LNWR 193 | Crewe | 3/1897 | 2-4-0 | Became LMS 5072; wd 1/1926. |
| Rocket | SDR | 4-4-0ST | |||
| Roderick Dhu | LNER 6400 | 4-4-0 | |||
| Rodney | LMS 5643 | 4-6-0 | |||
| Rodwell Hall | GWR 4964 | 4-6-0 | |||
| Roebuck | LNWR 1644 | 8/1911 | 4-4-0 | Became LMS 5366; wd 11/1936. | |
| Rolleston Hall | GWR 5973 | 4-6-0 | |||
| Romulus | GWR | 0-6-0 | |||
| Romulus | SDR | 0-6-0ST | |||
| Rood Ashton Hall | GWR 4965 | 4-6-0 | |||
| Rook | SDR | 0-4-0ST | |||
| Rooke | LMS 5660 | 4-6-0 | Became BR 45660. | ||
| Rosa | LVR | 4-4-0ST | |||
| Rosa | SDR | 0-6-0ST | |||
| Rose | GWR | 2-4-0T | |||
| Rotterdam Lloyd | SR 21C14 | 4-6-2 | |||
| Rougemont | GWR | 4-2-2 | |||
| Rougemont Castle | GWR 5007 | 4-6-0 | |||
| Roundhill Grange | GWR 6854 | 4-6-0 | |||
| Rover (1st) | GWR | 4-2-2 | |||
| Rover (2nd) | GWR | 4-2-2 | |||
| Rowland Hill | LNWR 2582 | Crewe 4526 | 12/1905 | 4-4-0 | Became LMS 5234; wd 12/1928. |
| Roxburghshire | LNER 306 | 4-4-0 | |||
| Royal Army Service Corps | LMS 6126 | 4-6-0 | |||
| Royal Fusilier | LMS 6111 | 4-6-0 | |||
| Royal George | LNWR 1908 | 4/1899 | 4-4-0 | Transferred to LMS; wd 1/1923. | |
| Royal Inniskilling Fusilier | LMS 6120 | 4-6-0 | |||
| Royal Irish Fusilier | LMS 6123 | 4-6-0 | |||
| Royal Lancer | LNER 4476 | 4-6-2 | |||
| Royal Mail | SR 21C3 | 4-6-2 | |||
| Royal Naval Division | LMS 5502 | 4-6-0 | |||
| Royal Oak | LNWR 1958 | 3/1902 | 4-4-0 | Rb 4/1922; became LMS 5181. | |
| Royal Scot | LMS 6100 | 4-6-0 | |||
| Royal Scots Fusilier | LMS 6103 | 4-6-0 | Rebuilt 1943 with a taper boiler | ||
| Royal Scots Grey | LMS 6101 | 4-6-0 | |||
| Royal Signals | LMS 5504 | 4-6-0 | |||
| Royal Sovereign | LNWR 1936 | 10/1900 | 4-4-0 | Rb 6/1917; became LMS 5150. | |
| Royal Star | BR 70028 | Crewe | 10/1952 | 4-6-2 | Wd 9/1967; scr 2/1968. |
| Royal Star | GWR | 2-2-2 | |||
| Royal Tank Corps | LMS 5507 | 4-6-0 | |||
| Royal Ulster Rifleman | LMS 6122 | 4-6-0 | |||
| Royal Welch Fusilier | LMS 6118 | 4-6-0 | |||
| Roydon Hall | GWR 5994 | 4-6-0 | |||
| Ruby | GWR | 0-6-0 | |||
| Ruckley Grange | GWR 6846 | 4-6-0 | |||
| Rudyard Kipling | BR 70035 | Crewe | 12/1952 | 4-6-2 | Wd 12/1967; scr 4/1968. |
| Rugby | SR 920 | 4-4-0 | |||
| Rupert Guinness | LNWR 668 | Crewe | 9/1914 | 4-6-0 | Became LMS 5915; wd 11/1934. |
| Rushton Hall | GWR 5913 | 4-6-0 | |||
| Rutlandshire | LNER 2754 | 4-4-0 | |||
| Ryde | SR 3 | 4-4-0 | Operated on the Isle of Wight |