| Name | What | Region | Country | Lat | Long | Elev ft. | Pop est |
|---|---|---|---|---|---|---|---|
| Blaby | city | Leicestershire | United Kingdom | 52.57 | -1.15 | 252 | 120703 |
| Black Hill | city | Durham | United Kingdom | 54.85 | -1.85 | 830 | 26730 |
| Black Notley | city | Essex | United Kingdom | 51.85 | 0.55 | 131 | 29144 |
| Black Torrington | city | Devon | United Kingdom | 50.82 | -4.18 | 830 | 2537 |
| Blackawton | city | Devon | United Kingdom | 50.35 | -3.67 | 830 | 9833 |
| Blackburn | city | Aberdeenshire | United Kingdom | 57.20 | -2.30 | 249 | 28187 |
| Blackburn | city | West Lothian | United Kingdom | 55.87 | -3.63 | 830 | 28546 |
| Blackburn | city | Blackburn with Darwen | United Kingdom | 53.75 | -2.48 | 830 | 58054 |
| Blackburn | city | Rotherham | United Kingdom | 53.43 | -1.37 | 206 | 90299 |
| Blackbushe | city | Hampshire | United Kingdom | 51.32 | -0.83 | 249 | 73765 |
| Blackbushes | city | Hampshire | United Kingdom | 51.32 | -0.83 | 249 | 73765 |
| Blackfen | city | Bexley | United Kingdom | 51.45 | 0.10 | 141 | 284475 |
| Blackford | city | Aberdeenshire | United Kingdom | 57.40 | -2.48 | 830 | 1043 |
| Blackford | city | Perth and Kinross | United Kingdom | 56.25 | -3.77 | 830 | 600 |
| Blackford | city | Somerset | United Kingdom | 51.23 | -2.85 | 88 | 10792 |
| Blackfort | city | Fermanagh and Omagh | United Kingdom | 54.53 | -7.30 | 377 | 3129 |
| Blackheath | city | Causeway Coast and Glens | United Kingdom | 55.05 | -6.70 | 262 | 5296 |
| Blackmill | city | Aberdeenshire | United Kingdom | 57.15 | -2.88 | 830 | 1043 |
| Blackmill | city | Bridgend | United Kingdom | 51.57 | -3.54 | 830 | 40896 |
| Blackmore | city | Essex | United Kingdom | 51.68 | 0.32 | 249 | 26402 |
| Blackpool | city | Blackpool | United Kingdom | 53.82 | -3.05 | 3 | 149223 |
| Blackrock | city | United Kingdom | 51.80 | -3.15 | 1669 | 29491 | |
| Blackrod | city | Bolton | United Kingdom | 53.58 | -2.58 | 255 | 111288 |
| Blackshawmoor Farm | city | Staffordshire | United Kingdom | 53.13 | -1.98 | 1043 | 6109 |
| Blackshield | city | Midlothian | United Kingdom | 55.83 | -2.93 | 967 | 4059 |
| Blackshiels | city | Midlothian | United Kingdom | 55.83 | -2.93 | 967 | 4059 |
| Blackston | city | Falkirk | United Kingdom | 55.93 | -3.73 | 830 | 32009 |
| Blackstone | city | Falkirk | United Kingdom | 55.93 | -3.73 | 830 | 32009 |
| Blackthorn | city | Oxfordshire | United Kingdom | 51.87 | -1.10 | 249 | 17891 |
| Blacktoft | city | East Riding of Yorkshire | United Kingdom | 53.72 | -0.73 | 3 | 8948 |
| Blackwall | city | Tower Hamlets | United Kingdom | 51.51 | -0.00 | 16 | 551976 |
| Blackwater | city | Hampshire | United Kingdom | 51.32 | -0.78 | 236 | 103535 |
| Blackwater | city | Isle of Wight | United Kingdom | 50.67 | -1.28 | 154 | 29790 |
| Blackwaterfoot | city | North Ayrshire | United Kingdom | 55.50 | -5.33 | 0 | 5092 |
| Blackwatertown | city | Armagh, Banbridge and Craigavon | United Kingdom | 54.42 | -6.70 | 209 | 4930 |
| Blackwell | city | Derbyshire | United Kingdom | 53.12 | -1.33 | 830 | 57258 |
| Blackwood | city | South Lanarkshire | United Kingdom | 55.67 | -3.92 | 830 | 25494 |
| Blackwood | city | Dumfries and Galloway | United Kingdom | 55.17 | -3.72 | 246 | 1341 |
| Blackwood | city | Caerffili | United Kingdom | 51.67 | -3.21 | 830 | 49288 |
| Bladenoch | city | Dumfries and Galloway | United Kingdom | 54.85 | -4.47 | 19 | 1341 |
| Bladnoch | city | Dumfries and Galloway | United Kingdom | 54.85 | -4.47 | 19 | 1341 |
| Bladon | city | Oxfordshire | United Kingdom | 51.82 | -1.35 | 249 | 20746 |
| Blaen-ogwr | city | Bridgend | United Kingdom | 51.63 | -3.59 | 990 | 37584 |
| Blaenafon | city | Torfaen | United Kingdom | 51.78 | -3.08 | 1669 | 29582 |
| Blaenau | city | Blaenau Gwent | United Kingdom | 51.77 | -3.17 | 1669 | 49884 |
| Blaenau Festiniog | city | Gwynedd | United Kingdom | 52.98 | -3.93 | 951 | 2654 |
| Blaenau-Ffestiniog | city | Gwynedd | United Kingdom | 52.98 | -3.93 | 951 | 2654 |
| Blaenavon | city | Torfaen | United Kingdom | 51.78 | -3.08 | 1669 | 29582 |
| Blaendulais | city | Neath Port Talbot | United Kingdom | 51.77 | -3.72 | 849 | 26052 |
| Blaendulais / Seven Sisters | city | Neath Port Talbot | United Kingdom | 51.77 | -3.72 | 849 | 26052 |
| Blaengarw | city | Bridgend | United Kingdom | 51.63 | -3.59 | 990 | 37584 |
| Blaengawr | city | Bridgend | United Kingdom | 51.63 | -3.59 | 990 | 37584 |
| Blaengwrach | city | Neath Port Talbot | United Kingdom | 51.74 | -3.64 | 830 | 23983 |
| Blaengwynfi | city | Neath Port Talbot | United Kingdom | 51.66 | -3.60 | 1669 | 34714 |
| Blaenpenal | city | Ceredigion | United Kingdom | 52.25 | -4.02 | 830 | 2831 |
| Blaenporth | city | Ceredigion | United Kingdom | 52.10 | -4.53 | 830 | 2454 |
| Blaenwaun | city | Carmarthenshire | United Kingdom | 51.91 | -4.57 | 830 | 906 |
| Blagberry | city | Devon | United Kingdom | 51.00 | -4.52 | 249 | 1682 |
| Blagdon | city | North Somerset | United Kingdom | 51.33 | -2.72 | 830 | 8077 |
| Blaich | city | Highland | United Kingdom | 56.83 | -5.20 | 830 | 0 |
| Blaidas | city | Northumberland | United Kingdom | 55.12 | -1.51 | 3 | 51849 |
| Blaidas | city | Nottinghamshire | United Kingdom | 53.37 | -1.07 | 144 | 16322 |
| Blain | city | Highland | United Kingdom | 56.75 | -5.78 | 246 | 0 |
| Blaina | city | Blaenau Gwent | United Kingdom | 51.77 | -3.17 | 1669 | 49884 |
| Blainslie | city | The Scottish Borders | United Kingdom | 55.68 | -2.73 | 830 | 1639 |
| Blair Atholl | city | Perth and Kinross | United Kingdom | 56.77 | -3.85 | 830 | 0 |
| Blair Atholl | city | Perth and Kinross | United Kingdom | 56.75 | -3.85 | 1017 | 0 |
| Blairgowrie | city | Perth and Kinross | United Kingdom | 56.58 | -3.33 | 134 | 0 |
| Blairhall | city | Fife | United Kingdom | 56.07 | -3.60 | 3 | 21632 |
| Blairmore | city | Argyll and Bute | United Kingdom | 55.98 | -4.90 | 0 | 3208 |
| Blakbernas | city | Blackburn with Darwen | United Kingdom | 53.75 | -2.48 | 830 | 58054 |
| Blakbernas | city | West Lothian | United Kingdom | 55.87 | -3.63 | 830 | 28546 |
| Blakbernas | city | Aberdeenshire | United Kingdom | 57.20 | -2.30 | 249 | 28187 |
| Blakbernas | city | Rotherham | United Kingdom | 53.43 | -1.37 | 206 | 90299 |
| Blakbörn | city | Blackburn with Darwen | United Kingdom | 53.75 | -2.48 | 830 | 58054 |
| Blakehill Farm | city | Wiltshire | United Kingdom | 51.62 | -1.88 | 295 | 21111 |
| Blakemere | city | Herefordshire | United Kingdom | 52.07 | -2.93 | 341 | 4470 |
| Blakeney | city | Norfolk | United Kingdom | 52.97 | 1.00 | 3 | 3833 |
| Blakeney | city | Gloucestershire | United Kingdom | 51.77 | -2.47 | 3 | 11796 |
| Blakesley | city | Northamptonshire | United Kingdom | 52.13 | -1.08 | 406 | 4323 |
| Blakpulas | city | Blackpool | United Kingdom | 53.82 | -3.05 | 3 | 149223 |
| Blanchland | city | Durham | United Kingdom | 54.83 | -2.05 | 1181 | 6728 |
| Blandford | city | Dorset | United Kingdom | 50.87 | -2.17 | 190 | 8195 |
| Blandford Forum | city | Dorset | United Kingdom | 50.87 | -2.17 | 190 | 8195 |
| Blanefield | city | Stirling | United Kingdom | 55.98 | -4.32 | 830 | 28092 |
| Blaney | city | Fermanagh and Omagh | United Kingdom | 54.42 | -7.75 | 259 | 2302 |
| Blankney | city | Lincolnshire | United Kingdom | 53.12 | -0.40 | 134 | 4172 |
| Blantyre | city | South Lanarkshire | United Kingdom | 55.77 | -4.10 | 830 | 28928 |
| Blatherwick | city | Northamptonshire | United Kingdom | 52.55 | -0.57 | 255 | 7165 |
| Blatherwycke | city | Northamptonshire | United Kingdom | 52.55 | -0.57 | 255 | 7165 |
| Blaxhall | city | Suffolk | United Kingdom | 52.15 | 1.45 | 36 | 4768 |
| Blaydon | city | Gateshead | United Kingdom | 54.97 | -1.70 | 88 | 136869 |
| Blaydon-on-Tyne | city | Gateshead | United Kingdom | 54.97 | -1.70 | 88 | 136869 |
| Bleadon | city | North Somerset | United Kingdom | 51.31 | -2.95 | 134 | 42051 |
| Blean | city | Kent | United Kingdom | 51.30 | 1.05 | 160 | 44893 |
| Bleasby | city | Nottinghamshire | United Kingdom | 53.03 | -0.93 | 95 | 7194 |
| Bleddfa | city | Powys | United Kingdom | 52.30 | -3.17 | 1115 | 1490 |
| Bledington | city | Oxfordshire | United Kingdom | 51.88 | -1.63 | 830 | 8597 |
| Bledlow | city | Buckinghamshire | United Kingdom | 51.72 | -0.87 | 830 | 4710 |
| Blencarn | city | Cumbria | United Kingdom | 54.67 | -2.55 | 830 | 1788 |
| Blencogo | city | Cumbria | United Kingdom | 54.80 | -3.25 | 226 | 4619 |
| Blencow | city | Cumbria | United Kingdom | 54.67 | -2.85 | 830 | 1788 |
| Bletchingdon | city | Oxfordshire | United Kingdom | 51.85 | -1.27 | 242 | 24852 |
| Bletchingley | city | Surrey | United Kingdom | 51.23 | -0.10 | 285 | 27833 |
| Bletchley | city | Milton Keynes | United Kingdom | 51.98 | -0.73 | 246 | 48260 |
| Bletherston | city | Sir Benfro | United Kingdom | 51.86 | -4.80 | 219 | 4408 |
| Bletherstone | city | Sir Benfro | United Kingdom | 51.86 | -4.80 | 219 | 4408 |
| Bletsoe | city | Bedford | United Kingdom | 52.20 | -0.50 | 252 | 23040 |
| Blewbury | city | Oxfordshire | United Kingdom | 51.55 | -1.23 | 830 | 4886 |
| Blečlis | city | Milton Keynes | United Kingdom | 51.98 | -0.73 | 246 | 48260 |
| Blickling | city | Norfolk | United Kingdom | 52.80 | 1.18 | 26 | 8036 |
| Blidworth | city | Nottinghamshire | United Kingdom | 53.08 | -1.13 | 328 | 52237 |
| Blindley Heath | city | Surrey | United Kingdom | 51.18 | -0.05 | 232 | 20988 |
| Blisland | city | Cornwall | United Kingdom | 50.52 | -4.68 | 830 | 7392 |
| Blisworth | city | Northamptonshire | United Kingdom | 52.17 | -0.93 | 265 | 43543 |
| Blitterlees | city | City of Edinburgh | United Kingdom | 55.85 | -3.38 | 921 | 60937 |
| Blockley | city | Gloucestershire | United Kingdom | 52.02 | -1.75 | 830 | 5065 |
| Blofield | city | Norfolk | United Kingdom | 52.62 | 1.45 | 16 | 19028 |
| Bloomsbury | city | Camden | United Kingdom | 51.52 | -0.12 | 62 | 741486 |
| Blore | city | Staffordshire | United Kingdom | 53.03 | -1.82 | 830 | 9816 |
| Bloxham | city | Oxfordshire | United Kingdom | 52.00 | -1.37 | 364 | 15565 |
| Bloxholm | city | Lincolnshire | United Kingdom | 53.08 | -0.42 | 147 | 4807 |
| Bloxholme | city | Lincolnshire | United Kingdom | 53.08 | -0.42 | 147 | 4807 |
| Bloxwich | city | Walsall | United Kingdom | 52.62 | -2.00 | 830 | 148105 |
| Bloxworth | city | Dorset | United Kingdom | 50.75 | -2.17 | 144 | 9477 |
| Blubberhouses | city | North Yorkshire | United Kingdom | 53.98 | -1.75 | 830 | 12004 |
| Blue Anchor | city | Somerset | United Kingdom | 51.18 | -3.40 | 45 | 2523 |
| Blundellsands | city | Sefton | United Kingdom | 53.48 | -3.05 | 0 | 74703 |
| Blunham | city | Central Bedfordshire | United Kingdom | 52.13 | -0.32 | 150 | 13975 |
| Blunsdon | city | Swindon | United Kingdom | 51.60 | -1.80 | 337 | 69587 |
| Blunsdon Saint Andrew | city | Swindon | United Kingdom | 51.60 | -1.80 | 337 | 69587 |
| Bluntisham | city | Cambridgeshire | United Kingdom | 52.35 | 0.02 | 75 | 9298 |
| Blyborough | city | Lincolnshire | United Kingdom | 53.43 | -0.58 | 173 | 3026 |
| Blyford | city | Suffolk | United Kingdom | 52.33 | 1.57 | 22 | 8821 |
| Blymhill | city | Staffordshire | United Kingdom | 52.72 | -2.28 | 291 | 8637 |
| Blyth | city | Northumberland | United Kingdom | 55.12 | -1.51 | 3 | 51849 |
| Blyth | city | Nottinghamshire | United Kingdom | 53.37 | -1.07 | 144 | 16322 |
| Blyth i Northumberland | city | Northumberland | United Kingdom | 55.12 | -1.51 | 3 | 51849 |
| Blythburgh | city | Suffolk | United Kingdom | 52.32 | 1.60 | 9 | 8168 |
| Blythe | city | Northumberland | United Kingdom | 55.12 | -1.51 | 3 | 51849 |
| Blythe Bridge | city | Staffordshire | United Kingdom | 52.97 | -2.07 | 830 | 59516 |
| Blythebridge | city | Staffordshire | United Kingdom | 52.97 | -2.07 | 830 | 59516 |
| Blyton | city | Lincolnshire | United Kingdom | 53.43 | -0.72 | 98 | 3278 |
| Blàr Athall | city | Perth and Kinross | United Kingdom | 56.77 | -3.85 | 830 | 0 |
| Blàr Ghoibhre | city | Perth and Kinross | United Kingdom | 56.58 | -3.33 | 134 | 0 |
| Bləkpul | city | Blackpool | United Kingdom | 53.82 | -3.05 | 3 | 149223 |