| Name | What | Region | Country | Lat | Long | Elev ft. | Pop est |
|---|---|---|---|---|---|---|---|
| Yyasty | city | Sakha (Yakutiya) | Russia | 67.92 | 151.58 | 118 | 0 |
| Yyastyy | city | Sakha (Yakutiya) | Russia | 67.92 | 151.58 | 118 | 0 |
| Yygylak | city | Tyva | Russia | 50.93 | 90.40 | 3536 | 149 |
| Yystaakh | city | Sakha (Yakutiya) | Russia | 67.54 | 133.92 | 830 | 0 |
| Yyutnoye | city | Voronezhskaya Oblast' | Russia | 51.19 | 42.36 | 390 | 956 |