| Name | What | Region | Country | Lat | Long | Elev ft. | Pop est |
|---|---|---|---|---|---|---|---|
| Mudagamuwa | city | Western | Sri Lanka | 7.11 | 80.03 | 141 | 165040 |
| Mudagomuwa | city | Western | Sri Lanka | 7.11 | 80.03 | 141 | 165040 |
| Muddaragama | city | Western | Sri Lanka | 7.21 | 80.05 | 223 | 107390 |
| Mudungoda | city | Western | Sri Lanka | 7.06 | 80.00 | 108 | 192252 |
| Mugurugampola | city | Western | Sri Lanka | 7.25 | 80.12 | 387 | 88101 |
| Mugurugampola Handurumulla | city | Western | Sri Lanka | 7.25 | 80.12 | 830 | 88101 |
| Muhandirampitiya | city | Western | Sri Lanka | 7.21 | 79.83 | 3 | 162330 |
| Mukalangamuwa | city | Western | Sri Lanka | 7.12 | 79.88 | 9 | 249769 |
| Mukalangedara | city | Western | Sri Lanka | 7.28 | 80.03 | 131 | 65066 |
| Mukkama | city | Western | Sri Lanka | 7.27 | 79.90 | 36 | 185784 |
| Mulatiyana | city | Western | Sri Lanka | 6.51 | 80.17 | 830 | 55699 |
| Mulatiyana | city | Western | Sri Lanka | 6.96 | 80.11 | 45 | 327866 |
| Mulkadakanda | city | Western | Sri Lanka | 6.64 | 80.03 | 232 | 158428 |
| Mullapitiya | city | Western | Sri Lanka | 6.45 | 80.00 | 16 | 108043 |
| Mullegama | city | Western | Sri Lanka | 6.88 | 80.01 | 278 | 228413 |
| Mullepitiya | city | Western | Sri Lanka | 6.45 | 80.00 | 16 | 108043 |
| Mulleriyawa | city | Western | Sri Lanka | 6.94 | 79.93 | 55 | 336913 |
| Mulleriyawa | city | Western | Sri Lanka | 6.93 | 79.93 | 78 | 303620 |
| Mulleriyawa North | city | Western | Sri Lanka | 6.94 | 79.93 | 55 | 336913 |
| Mulleyaya | city | Western | Sri Lanka | 7.27 | 79.94 | 42 | 106590 |
| Mulleyaya | city | Western | Sri Lanka | 7.28 | 79.96 | 49 | 76399 |
| Munagama | city | Western | Sri Lanka | 6.72 | 80.09 | 321 | 63346 |
| Munamalwatta | city | Western | Sri Lanka | 6.45 | 80.09 | 308 | 60322 |
| Munamalwatte | city | Western | Sri Lanka | 6.45 | 80.09 | 308 | 60322 |
| Munasinghagoda | city | Western | Sri Lanka | 6.51 | 80.00 | 127 | 154207 |
| Munasingoda | city | Western | Sri Lanka | 6.51 | 80.00 | 127 | 154207 |
| Munghena | city | Western | Sri Lanka | 6.50 | 80.01 | 111 | 156229 |
| Munhena | city | Western | Sri Lanka | 6.50 | 80.01 | 111 | 156229 |
| Munnakkara | city | Western | Sri Lanka | 7.20 | 79.83 | 3 | 156000 |
| Munnakkare | city | Western | Sri Lanka | 7.20 | 79.83 | 3 | 156000 |
| Muruddeniya | city | Western | Sri Lanka | 6.65 | 80.09 | 160 | 69880 |
| Murutagama | city | Western | Sri Lanka | 6.94 | 80.12 | 285 | 497318 |
| Murutana | city | Western | Sri Lanka | 7.28 | 79.87 | 13 | 193292 |
| Murutawala | city | Western | Sri Lanka | 7.18 | 80.13 | 830 | 98470 |
| Muruthagama | city | Western | Sri Lanka | 6.94 | 80.12 | 285 | 497318 |
| Muruthawala | city | Western | Sri Lanka | 7.18 | 80.13 | 830 | 98470 |
| Mutuwadiya | city | Western | Sri Lanka | 7.16 | 79.89 | 13 | 201287 |
| Mutwal | city | Western | Sri Lanka | 6.95 | 79.87 | 16 | 238416 |