Steam locomotives operated in the United Kingdom with names beginning with W.
| Name | Railroad, # | Builder, s/n | Build date | Whyte type | Notes |
|---|---|---|---|---|---|
| W. C. Brocklehurst | LNWR 2155 | 11/1910 | 4-4-0 | Became LMS 5326; rn 25326; wd 12/1936. | |
| W. E. Dorrington | LNWR 260 | Crewe | 8/1914 | 4-6-0 | Became LMS 5911; wd 3/1934. |
| W. M. Thackeray | LNWR 979 | Crewe | 4-6-0 | Became LMS 5630; wd 9/1934. | |
| Wallsworth Hall | GWR 5974 | 4-6-0 | |||
| Walsingham | LNER 2802 | 4-6-0 | |||
| Walter Burgh Gair | LNER 5433 | 4-4-0 | |||
| Walton Grange | GWR 6849 | 4-6-0 | |||
| Walton Hall | GWR 5918 | 4-6-0 | |||
| Wandering Willie | LNER 9499 | 4-4-0 | |||
| Wantage Hall | GWR 5962 | 4-6-0 | |||
| Wardley Hall | GWR 5950 | 4-6-0 | |||
| Wardour Castle | GWR 5066 | 4-6-0 | |||
| Warfield Hall | GWR 4976 | 4-6-0 | |||
| Warhawk | GWR | 0-6-0 | |||
| Warlock (1st) | GWR | 4-2-2 | |||
| Warlock (2nd) | GWR | 4-2-2 | |||
| Warrior | GWR | 0-6-0 | |||
| Warrior | LNWR 1925 | 3/1900 | 4-4-0 | Rb 4/1917; became LMS 5147. | |
| Warspite | LMS 5724 | 4-6-0 | |||
| Warwick Castle | GWR 4081 | 4-6-0 | |||
| Warwickshire | LNER 320 | 4-4-0 | |||
| Wasp | GWR | 2-4-0T | |||
| Watcombe Hall | GWR 4977 | 4-6-0 | |||
| Waterloo | LNWR 748 | 2-4-0 | Became LMS 5080. | ||
| Watt | GWR | 2-4-0 | |||
| Watt | LNWR 2585 | Crewe 4529 | 1/1906 | 4-4-0 | Became LMS 5236; wd 12/1933. |
| Waverley | GWR | 4-4-0 | |||
| Waverley | LNWR 2031 | Crewe 4474 | 3/1905 | 4-4-0 | Became LMS 5203; wd 12/1931. |
| Wear | GWR | 0-6-0 | |||
| Weasel | SDR | Avonside | 1873 | 0-4-0WT | Became GWR 2173 in 1876; wd 1882. |
| Welbeck Abbey | LNER 2819 | 4-6-0 | |||
| Wellington | GWR | 0-6-0 | |||
| Wellington | GWR 5075 | 4-6-0 | |||
| Wellington | SR 902 | 4-4-0 | |||
| Welsh Guardsman | LMS 6117 | 4-6-0 | |||
| Wemyss | LMS 5648 | 4-6-0 | |||
| West Ham United | LNER 2872 | 4-6-0 | |||
| Western Australia | LMS 5568 | 4-6-0 | |||
| Western Star | BR 70025 | Crewe | 9/1952 | 4-6-2 | Wd 12/1967; scr 1/1968. |
| Western Star | GWR | 2-2-2 | |||
| Westminster | LNWR 1550 | 10/1910 | 4-4-0 | Became LMS 5330; wd 9/1936. | |
| Westminster | SR 908 | 4-4-0 | |||
| Westminster Abbey | GWR 5089 | 4-6-0 | |||
| Westminster Hall | GWR 5917 | 4-6-0 | |||
| Westmorland | LNER 2760 | 4-4-0 | |||
| Westward Ho | BR 34036 | 4-6-2 | |||
| Westwood Hall | GWR 4978 | 4-6-0 | |||
| Wheatstone | LNWR 262 | Crewe | 4/1897 | 2-4-0 | Became LMS 5070; wd 6/1932. |
| Whetham | GWR | 0-6-0T | |||
| Whitbourne Hall | GWR 5940 | 4-6-0 | |||
| Whitgift | SR 916 | 4-4-0 | |||
| Whittington Castle | GWR 5021 | 4-6-0 | |||
| Whitwell | SR 26 | 0-4-4T | Operated on the Isle of Wight | ||
| Whitworth | LNWR 1045 | 2-4-0 | Became LMS 5081. | ||
| Wick Hall | GWR 5995 | 4-6-0 | |||
| Wickwar | B&GR | 2-2-2 | |||
| Widgeon | LNWR 1777 | 10/1911 | 4-4-0 | Became LMS 5378; rn 25378; wd 6/1937. | |
| Wigmore Castle | GWR 5022 | 4-6-0 | |||
| Wild Duck | LNWR 1595 | 9/1911 | 4-4-0 | Became LMS 5372; rn 25372; wd 12/1936. | |
| Wild Fire | GWR | 2-2-2 | |||
| Wild Swan | LNER 4467 | 4-6-2 | |||
| Wildfire | LNWR 468 | 2-4-0 | Became LMS 5086; rn Engineer Northampton in 1923. | ||
| William Cowper | LNWR 1321 | Crewe | 4-6-0 | Became LMS 5634; wd 9/1934. | |
| William Froude | LNWR 1138 | 2/1913 | 4-4-0 | Became LMS 5385; wd 8/1936. | |
| William Shakespeare | BR 70004 | Crewe | 3/1951 | 4-6-2 | Wd 12/1967; scr 4/1968. |
| William Siemens | LNWR 2154 | 2/1913 | 4-4-0 | Became LMS 5387; rn 25387; wd 2/1937. | |
| William Whitelaw | LNER 4462 | 4-6-2 | |||
| William Wordsworth | BR 70030 | Crewe | 11/1952 | 4-6-2 | Wd 7/1966; scr 1/1967. |
| Willington | 1813 | ||||
| Wilmington | LBSCR 343 | 1/1882 | 2-2-2 | Wd 6/1907. | |
| Wimpole Hall | GWR 5963 | 4-6-0 | |||
| Winchester | SR 901 | 4-4-0 | |||
| Winchester Castle | GWR 5042 | 4-6-0 | |||
| Windermere | LNWR 789 | 5/1915 | 4-4-0 | Became LMS 5401; wd 2/1936. | |
| Windsor | GWR | 0-6-0 | |||
| Windsor Castle | GWR 4082 | 4-6-0 | |||
| Windsor Lad | LNER 2500 | 4-6-2 | |||
| Windward Islands | LMS 5637 | 4-6-0 | |||
| Winnipeg | GWR 3400 | 4-4-0 | |||
| Winslow Hall | GWR 5975 | 4-6-0 | |||
| Winston Churchill | RH&DR 9 | Yorkshire | 1931 | 4-6-2 | Ex-Doctor Syn 1948; out of service awaiting overhaul as of 2009. |
| Witch | GWR | 2-2-2 | |||
| Witch | LNWR 379 | Crewe | 4-6-0 | Became LMS 5654; wd 3/1935. | |
| Wizard | GWR | 4-2-2 | |||
| Wizard | LNWR 872 | Crewe | 8/1895 | 2-4-0 | Wd 5/1922. |
| Wizard of the Moor | LNER 6391 | 4-4-0 | |||
| Wolf | CR | SSG | 1859 | 4-4-0ST | Transferred to SDR in 1866; became GWR 2115 in 1876. |
| Wolf | GWR | 2-2-2 | |||
| Wolf of Badenoch | LNER 2006 | 2-8-2 | |||
| Wolfhound | LNWR 1489 | 4/1911 | 4-4-0 | Became LMS 5341; wd 3/1936. | |
| Wollaton Hall | GWR 5999 | 4-6-0 | |||
| Wolseley Hall | GWR 5964 | 4-6-0 | |||
| Wolverhampton | GWR | 0-6-0 | |||
| Wolverine | LNWR 2021 | Crewe | 4-6-0 | Became LMS 5608; wd 2/1935. | |
| Wood | GWR | 2-4-0 | |||
| Woodbastwick Hall | LNER 2813 | 4-6-0 | |||
| Woodcock | LNER 4493 | 4-6-2 | |||
| Woodcock | LNWR 1799 | 10/1911 | 4-4-0 | Became LMS 5379; wd 8/1936. | |
| Woodlark | LNWR 794 | 2-4-0 | Became LMS 5104. | ||
| Woollas Halls | GWR 5965 | 4-6-0 | |||
| Woolston Grange | GWR 6858 | 4-6-0 | |||
| Woolwinder | LNER 2554 | 4-6-2 | |||
| Wootton Hall | GWR 4979 | 4-6-0 | |||
| Worsley Hall | GWR 5919 | 4-6-0 | |||
| Worsley-Taylor | LNER 5438 | 4-4-0 | |||
| Wrottesley Hall | GWR 4980 | 4-6-0 | |||
| Wroxall | SR 4 | 4-4-0 | Operated on the Isle of Wight. | ||
| Wycliffe Hall | GWR 5920 | 4-6-0 | |||
| Wye | GWR | 0-6-0 | |||
| Wynyard Park | LNER 2818 | 4-6-0 | |||
| Wyre | LNWR 1166 | 2-4-0 | Became LMS 5108. Note that this was a different locomotive from the one that became Engineer Bangor | ||
| Wyre | LNWR 1166 | 2-4-0 | Transferred to LMS; rn Engineer Bangor. Note that this was a different locomotive from the one that became LMS 5108. |