| Name | What | Region | Country | Lat | Long | Elev ft. | Pop est |
|---|---|---|---|---|---|---|---|
| Macau | city | Setubal | Portugal | 38.62 | -8.92 | 170 | 32406 |
| Mandorelha | city | Setubal | Portugal | 37.80 | -8.69 | 830 | 4940 |
| Manhosa | city | Setubal | Portugal | 38.63 | -9.02 | 91 | 136877 |
| Marateca | city | Setubal | Portugal | 38.58 | -8.67 | 213 | 2531 |
| Marco Cabaço | city | Setubal | Portugal | 38.62 | -9.19 | 252 | 135096 |
| Margueira | city | Setubal | Portugal | 38.68 | -9.15 | 3 | 376323 |
| Mascarenhas | city | Setubal | Portugal | 38.14 | -8.43 | 55 | 348 |
| Melides | city | Setubal | Portugal | 38.15 | -8.73 | 193 | 2349 |
| Moita | city | Setubal | Portugal | 38.65 | -8.99 | 72 | 75332 |
| Monserrate | city | Setubal | Portugal | 38.63 | -9.20 | 262 | 153507 |
| Monsoa | city | Setubal | Portugal | 38.62 | -9.13 | 141 | 179626 |
| Montalvo | city | Setubal | Portugal | 38.40 | -8.63 | 104 | 0 |
| Monte Alegre | city | Setubal | Portugal | 38.63 | -8.71 | 150 | 2474 |
| Monte Alto | city | Setubal | Portugal | 37.92 | -8.49 | 311 | 935 |
| Monte Fernanda | city | Setubal | Portugal | 38.79 | -8.65 | 144 | 1010 |
| Monte Novo | city | Setubal | Portugal | 38.45 | -8.63 | 52 | 7 |
| Monte Novo dos Besteiros | city | Setubal | Portugal | 37.85 | -8.58 | 324 | 827 |
| Monte da Arcebispa | city | Setubal | Portugal | 38.40 | -8.46 | 49 | 3992 |
| Monte da Carrasqueira | city | Setubal | Portugal | 38.40 | -8.76 | 26 | 853 |
| Monte da Lentisqueira | city | Setubal | Portugal | 38.60 | -8.78 | 111 | 6935 |
| Monte das Obras | city | Setubal | Portugal | 38.35 | -8.47 | 252 | 5091 |
| Monte de Alfevre do Mar | city | Setubal | Portugal | 38.32 | -8.44 | 134 | 841 |
| Monte de Arrais | city | Setubal | Portugal | 38.40 | -8.42 | 291 | 902 |
| Monte de Caparica | city | Setubal | Portugal | 38.67 | -9.20 | 242 | 264959 |
| Monte de Jangeis de Cima | city | Setubal | Portugal | 38.50 | -8.35 | 830 | 359 |
| Monte do Arieiro | city | Setubal | Portugal | 38.74 | -8.72 | 167 | 1357 |
| Monte do Borreiro | city | Setubal | Portugal | 37.87 | -8.59 | 360 | 893 |
| Monte do Caria | city | Setubal | Portugal | 38.66 | -8.68 | 206 | 2586 |
| Monte do Colar de Perdiz | city | Setubal | Portugal | 38.73 | -8.70 | 229 | 1407 |
| Monte do Godinho | city | Setubal | Portugal | 38.66 | -8.72 | 160 | 2006 |
| Monte do José da Costa | city | Setubal | Portugal | 38.64 | -8.73 | 141 | 2175 |
| Monte do Pinheiro | city | Setubal | Portugal | 38.46 | -8.72 | 187 | 920 |
| Monte dos Conqueiros | city | Setubal | Portugal | 37.93 | -8.36 | 114 | 1376 |
| Montevil | city | Setubal | Portugal | 38.40 | -8.62 | 72 | 118 |
| Montijo | city | Setubal | Portugal | 38.71 | -8.97 | 39 | 41283 |
| Murfacem | city | Setubal | Portugal | 38.67 | -9.22 | 341 | 181935 |
| Murriao | city | Setubal | Portugal | 38.67 | -9.20 | 242 | 264959 |
| Mutela | city | Setubal | Portugal | 38.67 | -9.15 | 32 | 289548 |