| Name | What | Region | Country | Lat | Long | Elev ft. | Pop est |
|---|---|---|---|---|---|---|---|
| 서산 | city | Chungnam | Korea, Republic of (South) | 36.78 | 126.45 | 62 | 58453 |
| 서산 | city | Jeonbuk | Korea, Republic of (South) | 35.73 | 127.35 | 898 | 4329 |
| 서산 | city | Gyeongnam | Korea, Republic of (South) | 35.57 | 128.14 | 187 | 6854 |
| 서산골 | city | Hamnam | Korea, Dem. Peoples Rep. of (North) | 39.66 | 127.07 | 360 | 7450 |
| 서산동 | city | Chagang | Korea, Dem. Peoples Rep. of (North) | 41.06 | 126.67 | 1154 | 7599 |
| 서산동 | city | Chagang | Korea, Dem. Peoples Rep. of (North) | 40.96 | 126.57 | 1082 | 7599 |
| 서산리 | city | Chungbuk | Korea, Republic of (South) | 36.09 | 127.69 | 830 | 4321 |
| 서산리 | city | Jeonnam | Korea, Republic of (South) | 34.64 | 126.71 | 216 | 8901 |
| 서산리 | city | Gyeongnam | Korea, Republic of (South) | 35.59 | 128.13 | 830 | 6854 |
| 서산말 | city | Gangwon | Korea, Republic of (South) | 37.18 | 128.46 | 830 | 14115 |
| 서산밑 | city | Chungnam | Korea, Republic of (South) | 36.38 | 126.62 | 164 | 39145 |
| 서산시 | city | Chungnam | Korea, Republic of (South) | 36.78 | 126.45 | 62 | 58453 |