| Code | Name | Region |
|---|---|---|
| GBWBR | Weybridge | SRY |
| GBWEY | Weymouth | DOR |
| GBWYB | Whaley Bridge | DBY |
| GBWLG | Whaligoe | HLD |
| GBAHY | Whalley | LAN |
| GBWHY | Whalsay | |
| GBWH9 | Wharton | CHW |
| GBWCE | Whatcote | WAR |
| GBWHA | Whatton | NTT |
| GBWHP | Wheathampstead | HRT |
| GBWT3 | Wheatley | OXF |
| GBWSO | Whetstone | LEC |
| GBWPL | Whimple | |
| GBWNL | Whinnyfold | ABD |
| GBWHX | Whissonsett | |
| GBWIO | Whiston | KWL |
| GBWXW | Westgate | DUR |
| GBWSE | Westgate On Sea | KEN |
| GBETM | Westham | ESX |
| GBWSI | Westhill | ABD |
| GBWTG | Westhoughton | BOL |
| GBWYW | Westley Waterless | CAM |
| GBETL | Westlinton | CMA |
| GBTSR | Westminster | LND |
| GBWES | Weston | HRT |
| GBWTQ | Weston | NTH |
| GBWSN | Weston | STS |
| GBWFV | Weston Favell | NTH |
| GBWSP | Weston Point | HAL |
| GBWUT | Weston Upon Trent | STS |
| GBWSM | Weston-super-mare | NSM |
| GBZOY | Westonzoyland | SOM |
| GBNYW | Westow | NYK |
| GBWRY | Westray | ORK |
| GBWWS | Westwoodside | NLN |
| GBWET | Wetherby | LDS |
| GBWMS | West Mersea | ESS |
| GBWXT | West Midlands | BIR |
| GBWMO | West Molesey | SRY |
| GBWMR | West Moors | DOR |
| GBWRW | West Norwood | CRY |
| GBWUN | West Runton | NFK |
| GBWSF | West Stafford | DOR |
| GBLWT | West Thurrock | ESS |
| GBWWE | West Wemyss | FIF |
| GBWWC | West Wickham | BRY |
| GBWWG | West Wittering | WSX |
| GBWSY | Westbury | WIL |
| GBWYS | Westbury On Severn | GLS |
| GBWFO | Westcliffe On Sea | ESS |