| Name | What | Region | Country | Lat | Long | Elev ft. | Pop est |
|---|---|---|---|---|---|---|---|
| Yyarva-Yani | city | Jarvamaa | Estonia | 59.04 | 25.89 | 334 | 980 |
| Yyasty | city | Sakha (Yakutiya) | Russia | 67.92 | 151.58 | 118 | 0 |
| Yyastyy | city | Sakha (Yakutiya) | Russia | 67.92 | 151.58 | 118 | 0 |
| Yyatymak | city | Batken | Kyrgyzstan | 40.26 | 71.65 | 2509 | 22168 |
| Yyeere | city | Laanemaa | Estonia | 58.78 | 24.09 | 36 | 436 |
| Yyeertse | city | Parnumaa | Estonia | 58.68 | 25.12 | 147 | 432 |
| Yyeeru | city | Raplamaa | Estonia | 58.81 | 24.42 | 104 | 447 |
| Yyekyula | city | Raplamaa | Estonia | 58.79 | 25.12 | 190 | 303 |
| Yyekyula | city | Parnumaa | Estonia | 58.53 | 24.62 | 52 | 604 |
| Yyerkhy | city | Minskaya Oblast' | Belarus | 54.57 | 27.23 | 830 | 1176 |
| Yyesu | city | Harjumaa | Estonia | 59.47 | 25.16 | 111 | 594 |
| Yyesu | city | Viljandimaa | Estonia | 58.38 | 26.14 | 154 | 338 |
| Yygeva | city | Jogevamaa | Estonia | 58.75 | 26.39 | 229 | 7702 |
| Yygisu | city | Harjumaa | Estonia | 59.28 | 24.51 | 137 | 4906 |
| Yygylak | city | Tyva | Russia | 50.93 | 90.40 | 3536 | 149 |
| Yyin | city | Yap | Federated States of Micronesia | 9.58 | 138.12 | 29 | 6211 |
| Yykeänmuotka | city | Troms | Norway | 69.58 | 20.22 | 127 | 472 |
| Yykeänperä | city | Troms | Norway | 69.40 | 20.27 | 249 | 401 |
| Yykhvi | city | Ida-Virumaa | Estonia | 59.36 | 27.42 | 183 | 22565 |
| Yylanly | city | Turkmenistan | 41.83 | 59.65 | 219 | 1788 | |
| Yyskaftkalen | city | Jamtland | Sweden | 63.78 | 15.22 | 1233 | 0 |
| Yystaakh | city | Sakha (Yakutiya) | Russia | 67.54 | 133.92 | 830 | 0 |
| Yysu | city | Viljandimaa | Estonia | 58.20 | 25.55 | 305 | 659 |
| Yyteri | city | Satakunta | Finland | 61.57 | 21.53 | 52 | 4602 |
| Yyuga | city | Ida-Virumaa | Estonia | 59.14 | 27.36 | 170 | 407 |
| Yyutnoye | city | Voronezhskaya Oblast' | Russia | 51.19 | 42.36 | 390 | 956 |
| Yyyepera | city | Tartumaa | Estonia | 58.26 | 27.44 | 55 | 266 |
| Yyyezu | city | Viljandimaa | Estonia | 58.38 | 26.14 | 154 | 338 |
| Yyysmyae | city | Harjumaa | Estonia | 59.42 | 24.64 | 72 | 103897 |