| Name | What | Region | Country | Lat | Long | Elev ft. | Pop est |
|---|---|---|---|---|---|---|---|
| Y An | city | Heilongjiang | China | 47.89 | 125.30 | 830 | 9387 |
| Y An | city | Anhui | China | 29.90 | 117.94 | 994 | 32277 |
| Y Bala | city | Gwynedd | United Kingdom | 52.92 | -3.60 | 830 | 3068 |
| Y Barri | city | Bro Morgannwg | United Kingdom | 51.41 | -3.27 | 26 | 20292 |
| Y Bermo | city | Gwynedd | United Kingdom | 52.75 | -4.07 | 889 | 2204 |
| Y Bont-faen | city | Bro Morgannwg | United Kingdom | 51.46 | -3.44 | 203 | 32294 |
| Y Borth | city | Ceredigion | United Kingdom | 52.48 | -4.05 | 242 | 5281 |
| Y Bằng | city | Tuyen Quang | Vietnam | 21.75 | 105.11 | 216 | 19485 |
| Y Can | city | Yen Bai | Vietnam | 21.75 | 104.82 | 249 | 24475 |
| Y Cei Newydd | city | Ceredigion | United Kingdom | 52.22 | -4.37 | 223 | 1025 |
| Y Chou Phen | city | Son La | Vietnam | 21.48 | 104.17 | 3349 | 6258 |
| Y Chou Phen | city | Son La | Vietnam | 21.47 | 104.17 | 2509 | 6258 |
| Y City | city | Arkansas | United States | 34.73 | -94.08 | 980 | |
| Y Clas-ar-Wy | city | Powys | United Kingdom | 52.03 | -3.20 | 830 | 1490 |
| Y Coed Duon | city | Caerffili | United Kingdom | 51.67 | -3.21 | 830 | 49288 |
| Y Crwys | city | Swansea | United Kingdom | 51.63 | -4.07 | 282 | 51172 |
| Y Don Ngoai | city | Thai Binh | Vietnam | 20.58 | 106.28 | 13 | 171804 |
| Y Drenewydd | city | Powys | United Kingdom | 52.52 | -3.30 | 830 | 1490 |
| Y Farteg | city | Torfaen | United Kingdom | 51.75 | -3.07 | 1043 | 40373 |
| Y Felinheli | city | Gwynedd | United Kingdom | 53.18 | -4.20 | 269 | 9296 |
| Y Felinheli / Port Dinorwic | city | Gwynedd | United Kingdom | 53.18 | -4.20 | 269 | 9296 |
| Y Fenni | city | Sir Fynwy | United Kingdom | 51.83 | -3.02 | 278 | 2691 |
| Y Fflint | city | Flintshire | United Kingdom | 53.27 | -3.17 | 59 | 33251 |
| Y Griega | city | Higuamo | Dominican Republic | 18.48 | -69.42 | 111 | 35458 |
| Y Grysmwnt | city | Sir Fynwy | United Kingdom | 51.92 | -2.87 | 830 | 3593 |
| Y Khắc Ô Lan | city | Qinghai | China | 37.31 | 100.08 | 10908 | 340 |
| Y Ky | city | Phu Tho | Vietnam | 21.41 | 105.35 | 68 | 89289 |
| Y La | city | Tuyen Quang | Vietnam | 21.84 | 105.18 | 91 | 36196 |
| Y Lan | city | Heilongjiang | China | 46.32 | 129.55 | 308 | 6411 |
| Y Leng | city | Quang Binh | Vietnam | 17.79 | 105.78 | 935 | 7603 |
| Y Lin Ho | city | Lao Cai | Vietnam | 22.31 | 103.85 | 4189 | 2980 |
| Y Linh Ho | city | Lao Cai | Vietnam | 22.31 | 103.85 | 4189 | 2980 |
| Y Lo | city | Tuyen Quang | Vietnam | 21.84 | 105.18 | 91 | 36196 |
| Y Mwynglawdd | city | Wrexham | United Kingdom | 53.05 | -3.10 | 1076 | 22566 |
| Y Na | city | Bac Ninh | Vietnam | 21.19 | 106.07 | 55 | 150159 |
| Y Nhan | city | Tuyen Quang | Vietnam | 21.70 | 105.34 | 393 | 24327 |
| Y Nhon | city | Quang Ngai | Vietnam | 14.83 | 108.70 | 200 | 5825 |
| Y Ninh | city | Xinjiang | China | 43.91 | 81.33 | 2096 | 3278 |
| Y O RANCH | airport | United States | 30.20 | -99.67 | 2136 | 0 | |
| Y Porth | city | Rhondda Cynon Taf | United Kingdom | 51.61 | -3.40 | 406 | 47166 |
| Y Pîl | city | Bridgend | United Kingdom | 51.52 | -3.70 | 249 | 32035 |
| Y Rhath | city | Cardiff | United Kingdom | 51.49 | -3.15 | 3 | 141531 |
| Y Rhiw | city | Gwynedd | United Kingdom | 52.82 | -4.63 | 0 | 1909 |
| Y Rhondda | city | Rhondda Cynon Taf | United Kingdom | 51.65 | -3.48 | 853 | 46641 |
| Y Rhws | city | Bro Morgannwg | United Kingdom | 51.39 | -3.35 | 3 | 17385 |
| Y Rhyl | city | Sir Ddinbych | United Kingdom | 53.32 | -3.50 | 203 | 8120 |
| Y Sang Cho Ma | city | Phongsali | Laos | 21.30 | 102.23 | 4189 | 1377 |
| Y Section | city | Tennessee | United States | 36.31 | -82.38 | 1686 | |
| Y Sgwar | city | Sir Benfro | United Kingdom | 51.94 | -5.13 | 314 | 3406 |
| Y Sili | city | Bro Morgannwg | United Kingdom | 51.41 | -3.22 | 0 | 18508 |
| Y Son | city | Phu Tho | Vietnam | 21.60 | 104.97 | 127 | 47974 |
| Y Thuong | city | Quang Ninh | Vietnam | 21.03 | 106.72 | 101 | 47906 |
| Y Ti | city | Lao Cai | Vietnam | 22.67 | 103.58 | 3589 | 7036 |
| Y Trallwng | city | Powys | United Kingdom | 52.67 | -3.13 | 246 | 1491 |
| Y Tu | city | Ha Tinh | Vietnam | 18.37 | 105.77 | 22 | 50472 |
| Y Waun | city | Wrexham | United Kingdom | 52.94 | -3.07 | 396 | 21075 |
| Y Wig | city | Bro Morgannwg | United Kingdom | 51.44 | -3.55 | 272 | 14576 |
| Y Xa | city | Thanh Hoa | Vietnam | 19.78 | 105.72 | 62 | 264273 |
| Y Xuyên | city | Henan | China | 34.42 | 112.42 | 830 | 51942 |
| Y Xuân | city | Heilongjiang | China | 47.72 | 128.82 | 830 | 2086 |
| Y Yen | city | Gia Lai | Vietnam | 13.46 | 108.40 | 830 | 7152 |
| Y Đốn Ngoai | city | Thai Binh | Vietnam | 20.58 | 106.28 | 13 | 171804 |