| Name | What | Region | Country | Lat | Long | Elev ft. | Pop est |
|---|---|---|---|---|---|---|---|
| Yada | city | Okayama | Japan | 34.63 | 133.69 | 246 | 80578 |
| Yado | city | Okayama | Japan | 34.90 | 133.45 | 984 | 4891 |
| Yagake | city | Okayama | Japan | 34.63 | 133.59 | 265 | 21869 |
| Yakage | city | Okayama | Japan | 34.63 | 133.59 | 265 | 21869 |
| Yakake | city | Okayama | Japan | 34.63 | 133.59 | 265 | 21869 |
| Yama Kami | city | Okayama | Japan | 34.77 | 133.84 | 830 | 53454 |
| Yamagami | city | Okayama | Japan | 34.77 | 133.84 | 830 | 53454 |
| Yamakage | city | Okayama | Japan | 35.07 | 133.57 | 1669 | 5147 |
| Yamanoue | city | Okayama | Japan | 34.77 | 133.84 | 830 | 53454 |
| Yanagi | city | Okayama | Japan | 35.05 | 133.88 | 997 | 10670 |
| Yanagihara | city | Okayama | Japan | 35.08 | 133.32 | 1968 | 2098 |
| Yanahara | city | Okayama | Japan | 34.95 | 134.06 | 830 | 8034 |
| Yata | city | Okayama | Japan | 34.63 | 133.69 | 246 | 80578 |
| Yata | city | Okayama | Japan | 34.93 | 133.33 | 1669 | 4158 |
| Yato | city | Okayama | Japan | 34.90 | 133.45 | 984 | 4891 |
| Yobimatsu | city | Okayama | Japan | 34.51 | 133.77 | 830 | 138466 |
| Yokoshima | city | Okayama | Japan | 34.49 | 133.52 | 55 | 46012 |
| Yorishima | city | Okayama | Japan | 34.49 | 133.58 | 206 | 47824 |
| Yorishimachō | city | Okayama | Japan | 34.49 | 133.58 | 206 | 47824 |
| Yoshikawa | city | Okayama | Japan | 34.82 | 133.75 | 1177 | 6346 |
| Yoshinaga | city | Okayama | Japan | 34.81 | 134.21 | 295 | 17259 |
| Yoshinaga-naka | city | Okayama | Japan | 34.81 | 134.21 | 295 | 17259 |
| Yoshinagacho-yoshinaganaka | city | Okayama | Japan | 34.81 | 134.21 | 295 | 17259 |
| Yosuna | city | Okayama | Japan | 34.52 | 133.48 | 16 | 63294 |
| Yugo | city | Okayama | Japan | 34.99 | 134.13 | 830 | 7452 |
| Yunogō | city | Okayama | Japan | 34.99 | 134.13 | 830 | 7452 |
| Yōgō | city | Okayama | Japan | 35.07 | 133.46 | 1669 | 6817 |
| Yōkaichi | city | Okayama | Japan | 34.68 | 133.50 | 1141 | 9473 |