Y
- Yafforth
- Yalding
- Yanwath
- Yanworth
- Yapton
- Yarburgh
- Yarcombe
- Yardley
- Yardley Gobion
- Yardley Hastings
- Yardley Wood
- Yarhampton
- Yarlet
- Yarlington
- Yarm
- Yarmouth
- Yarnbrook
- Yarnscombe
- Yarnton
- Yarpole
- Yarrow
- Yarrow
- Yarsop
- Yarwell
- Yate
- Yateley
- Yatesbury
- Yattendon
- Yatton
- Yatton
- Yatton, Herefordshire
- Yatton Keynell
- Yawthorpe
- Yaxham
- Yaxley
- Yaxley
- Yazor, Herefordshire
- Yeading
- Yeadon
- Yealand Conyers
- Yealand Redmayne
- Yealmbridge
- Yealmpton
- Yearby
- Yearsley
- Yeaveley
- Yedingham
- Yeldersley
- Yelford
- Yelland
- Yelling
- Yellowham Wood, Dorset
- Yelsted
- Yelvertoft
- Yelverton
- Yelverton, Norfolk
- Yenston
- Yeoford
- Yeomadon
- Yeoman Business Estate
- Yeovil
- Yeovil Marsh
- Yeovilton
- Yerbeston
- Yeskett
- Yesnaby
- Yetlington, Northumberland
- Yetminster
- Yettington
- Yewlands
- Y Felinheli
- Y-Ffor
- Yielden
- Yiewsley
- Ynys
- Ynysboeth
- Ynysddu, Caerphilly
- Ynysfadog
- Ynyslas
- Ynysmaerdy
- Ynyswen
- Ynysybwl
- Yockenthwaite
- Yockleton
- Yokefleet
- York
- Yorkletts
- Yorton
- Youldon
- Youlgreave
- Youlstone
- Youlton
- Young's End
- Yoxall
- Yoxford
- Yoxter
- Ypsonas
- Ysbyty Cynfyn
- Ysbyty Ystwyth
- Ysgubor Newydd
- Yspytty Evan
- Yspytty-Ifan, Conwy
- Ystalyfera
- Ystrad
- Ystrad
- Ystradfellte
- Ystradffin
- Ystradgynlais
- Ystrad Meurig
- Ystrad Mynach
- Ystradowen
- Ystumtuen
- Ythanbank
- Ythsie, Aberdeenshire