| Name | What | Region | Country | Lat | Long | Elev ft. | Pop est |
|---|---|---|---|---|---|---|---|
| Madong | city | Ulsan | Korea, Republic of (South) | 35.64 | 129.36 | 830 | 76227 |
| Maeamdong | city | Ulsan | Korea, Republic of (South) | 35.52 | 129.37 | 0 | 361706 |
| Maeamdong | city | Ulsan | Korea, Republic of (South) | 35.50 | 129.38 | 0 | 333546 |
| Maegokdong | city | Ulsan | Korea, Republic of (South) | 35.64 | 129.37 | 830 | 63628 |
| Maegong-ni | city | Ulsan | Korea, Republic of (South) | 35.64 | 129.37 | 830 | 63628 |
| Mageun | city | Ulsan | Korea, Republic of (South) | 35.38 | 129.28 | 374 | 27486 |
| Makdaegok | city | Ulsan | Korea, Republic of (South) | 35.44 | 129.24 | 160 | 37121 |
| Malmi | city | Ulsan | Korea, Republic of (South) | 35.58 | 129.27 | 137 | 194906 |
| Manghae | city | Ulsan | Korea, Republic of (South) | 35.53 | 129.25 | 190 | 148574 |
| Manghwa | city | Ulsan | Korea, Republic of (South) | 35.45 | 129.29 | 36 | 105562 |
| Mangseong | city | Ulsan | Korea, Republic of (South) | 35.59 | 129.23 | 62 | 52917 |
| Manjugok | city | Ulsan | Korea, Republic of (South) | 35.52 | 129.28 | 177 | 296861 |
| Manseokgol | city | Ulsan | Korea, Republic of (South) | 35.63 | 129.31 | 170 | 55453 |
| Masan | city | Ulsan | Korea, Republic of (South) | 35.54 | 129.12 | 830 | 8493 |
| Mip'o | city | Ulsan | Korea, Republic of (South) | 35.54 | 129.44 | 3 | 207134 |
| Mip'o-dong | city | Ulsan | Korea, Republic of (South) | 35.54 | 129.44 | 3 | 207134 |
| Mip'o-ri | city | Ulsan | Korea, Republic of (South) | 35.54 | 129.44 | 3 | 207134 |
| Mipodong | city | Ulsan | Korea, Republic of (South) | 35.54 | 129.44 | 3 | 207134 |
| Mip’o | city | Ulsan | Korea, Republic of (South) | 35.54 | 129.44 | 3 | 207134 |
| Mip’o-dong | city | Ulsan | Korea, Republic of (South) | 35.54 | 129.44 | 3 | 207134 |
| Mip’o-ri | city | Ulsan | Korea, Republic of (South) | 35.54 | 129.44 | 3 | 207134 |
| Misilgol | city | Ulsan | Korea, Republic of (South) | 35.36 | 129.32 | 59 | 14915 |
| Mosan | city | Ulsan | Korea, Republic of (South) | 35.68 | 129.23 | 830 | 8493 |
| Mosangok | city | Ulsan | Korea, Republic of (South) | 35.44 | 129.23 | 269 | 31589 |
| Mosap | city | Ulsan | Korea, Republic of (South) | 35.62 | 129.16 | 295 | 8493 |
| Mudong | city | Ulsan | Korea, Republic of (South) | 35.56 | 129.20 | 830 | 25065 |
| Mulcheongching | city | Ulsan | Korea, Republic of (South) | 35.57 | 129.42 | 830 | 206605 |
| Mulgeonneo | city | Ulsan | Korea, Republic of (South) | 35.44 | 129.20 | 416 | 29759 |
| Murangol | city | Ulsan | Korea, Republic of (South) | 35.38 | 129.27 | 406 | 29083 |
| Muryong-ni | city | Ulsan | Korea, Republic of (South) | 35.61 | 129.42 | 157 | 65228 |
| Muryongdong | city | Ulsan | Korea, Republic of (South) | 35.61 | 129.42 | 157 | 65228 |
| Myeongchon | city | Ulsan | Korea, Republic of (South) | 35.61 | 129.43 | 72 | 80716 |
| Myeongchon | city | Ulsan | Korea, Republic of (South) | 35.57 | 129.08 | 830 | 8493 |
| Myeongdong | city | Ulsan | Korea, Republic of (South) | 35.59 | 129.11 | 374 | 8493 |