| City | Region |
|---|
| ›Madawachchi | Eastern› |
| ›Magalla | Southern Province› |
| ›Maggona | Western Province› |
| ›Mahagama | Western Province› |
| ›Mahamodara | Southern Province› |
| ›Maharagama | Western Province› |
| ›Mahasenpura | Southern Province› |
| ›Mahawewa | North Western Province› |
| ›Mahiyanganaya | Uva Province› |
| ›Maho | North Western Province› |
| ›Makkiluttu | Eastern› |
| ›Mallawapitiya | North Western Province› |
| ›Manalkadu | Northern› |
| ›Mananpitiya | North Central Province› |
| ›Mandaitivu | Northern› |
| ›Mankerni | Eastern› |
| ›Mankumban | Northern› |
| ›Mannar | North Western Province› |
| ›Mantuvil | Northern› |
| ›Mapala Gama (Mapalagama) | Southern Province› |
| ›Maradankadawala | North Central Province› |
| ›Marawila | North Western Province› |
| ›Marutamunai | Eastern› |
| ›Maskeliya | Central Province› |
| ›Matale | Central Province› |
| ›Matara | Southern Province› |
| ›Mathagal | Northern› |
| ›Matugama | Western Province› |
| ›Mavadiodai | Eastern› |
| ›Mavadivembu | Eastern› |
| ›Maviddapuram | Northern› |
| ›Medavachchiya | North Central Province› |
| ›Medirigiriya | North Central Province› |
| ›Mediwaka | Central Province› |
| ›Meesalai | Northern› |
| ›Menikhinna | Central Province› |
| ›Meramitipana | Sabaragamuwa› |
| ›Migahajandura | Southern Province› |
| ›Mihiripenna | Southern Province› |
| ›Modara | Western Province› |
| ›Molagoda | Sabaragamuwa› |
| ›Moneragala | Uva Province› |
| ›Moolai | Northern› |
| ›Moragala | Western Province› |
| ›Moratuwa | Western Province› |
| ›Mulikulam | North Western Province› |
| ›Mullaittivu | Northern› |
| ›Mulliyavalai | Northern› |
| ›Munnakkare | Western Province› |
| ›Murasumoddai | Northern› |
| ›Muruthanai | Eastern› |
| ›Mutur | Eastern› |
| ›Muwapitiya | Sabaragamuwa› |
| ›Mylambaveli | Eastern› |
| ›Myliddy | Northern› |
