| Name | What | Region | Country | Lat | Long | Elev ft. | Pop est |
|---|---|---|---|---|---|---|---|
| Machuqueira do Grou | city | Santarem | Portugal | 39.11 | -8.36 | 830 | 894 |
| Macieira | city | Santarem | Portugal | 39.61 | -8.30 | 830 | 3857 |
| Macieiros | city | Santarem | Portugal | 39.54 | -8.37 | 377 | 13038 |
| Madalena | city | Santarem | Portugal | 39.57 | -8.45 | 830 | 16551 |
| Madeiras | city | Santarem | Portugal | 39.48 | -8.37 | 321 | 9018 |
| Madeiros | city | Santarem | Portugal | 39.06 | -8.30 | 830 | 938 |
| Malaqueijo | city | Santarem | Portugal | 39.29 | -8.82 | 360 | 5252 |
| Malhada dos Porcos | city | Santarem | Portugal | 39.10 | -8.68 | 183 | 7049 |
| Malhou | city | Santarem | Portugal | 39.43 | -8.68 | 406 | 11986 |
| Malpique | city | Santarem | Portugal | 39.43 | -8.30 | 830 | 4769 |
| Maravila | city | Santarem | Portugal | 39.25 | -8.32 | 830 | 346 |
| Maria do Sizo | city | Santarem | Portugal | 38.95 | -8.67 | 55 | 3517 |
| Marianos | city | Santarem | Portugal | 39.18 | -8.47 | 275 | 2943 |
| Marinhais | city | Santarem | Portugal | 39.05 | -8.70 | 173 | 8961 |
| Marmeleira | city | Santarem | Portugal | 39.26 | -8.84 | 328 | 4935 |
| Marmeleira | city | Santarem | Portugal | 39.30 | -8.96 | 328 | 9203 |
| Marmeleiro | city | Santarem | Portugal | 39.56 | -8.44 | 252 | 15532 |
| Marmeleiro | city | Santarem | Portugal | 39.21 | -8.32 | 830 | 316 |
| Marruas | city | Santarem | Portugal | 39.47 | -8.58 | 830 | 16080 |
| Marta | city | Santarem | Portugal | 39.71 | -8.48 | 830 | 6430 |
| Martinchel | city | Santarem | Portugal | 39.54 | -8.31 | 853 | 4051 |
| Martinhos | city | Santarem | Portugal | 38.93 | -8.56 | 78 | 5574 |
| Martinzes | city | Santarem | Portugal | 39.66 | -8.01 | 1082 | 1879 |
| Mata | city | Santarem | Portugal | 39.54 | -8.54 | 830 | 11593 |
| Mata | city | Santarem | Portugal | 39.72 | -8.57 | 830 | 10838 |
| Mata | city | Santarem | Portugal | 39.79 | -8.52 | 830 | 5978 |
| Mata Cimeira | city | Santarem | Portugal | 39.54 | -7.85 | 830 | 1042 |
| Mata Fome | city | Santarem | Portugal | 39.19 | -8.42 | 374 | 946 |
| Mata Lobos | city | Santarem | Portugal | 38.94 | -8.64 | 131 | 2548 |
| Mata de Baixo | city | Santarem | Portugal | 39.38 | -8.98 | 830 | 13060 |
| Mata de Rei | city | Santarem | Portugal | 39.43 | -8.87 | 830 | 5059 |
| Matagosinha | city | Santarem | Portugal | 39.62 | -8.18 | 859 | 2645 |
| Matas | city | Santarem | Portugal | 39.32 | -8.73 | 374 | 7812 |
| Matas | city | Santarem | Portugal | 39.60 | -8.58 | 898 | 9391 |
| Matas de Espite | city | Santarem | Portugal | 39.74 | -8.66 | 830 | 9968 |
| Mato de Miranda | city | Santarem | Portugal | 39.37 | -8.55 | 91 | 4700 |
| Matos | city | Santarem | Portugal | 39.72 | -8.37 | 830 | 4605 |
| Matos | city | Santarem | Portugal | 39.50 | -8.34 | 236 | 7484 |
| Maxial | city | Santarem | Portugal | 39.62 | -8.24 | 830 | 3634 |
| Maxial de Além | city | Santarem | Portugal | 39.62 | -8.25 | 830 | 3647 |
| Maxieira | city | Santarem | Portugal | 39.58 | -8.63 | 1082 | 7535 |
| Maxieira | city | Santarem | Portugal | 39.64 | -7.98 | 1669 | 1864 |
| Mação | city | Santarem | Portugal | 39.56 | -7.99 | 830 | 2647 |
| Medroa | city | Santarem | Portugal | 39.53 | -8.28 | 830 | 3941 |
| Medronheira | city | Santarem | Portugal | 39.06 | -8.48 | 406 | 1553 |
| Meia Via | city | Santarem | Portugal | 39.47 | -8.50 | 203 | 37090 |
| Meirinho | city | Santarem | Portugal | 39.40 | -8.16 | 265 | 4524 |
| Meirinho | city | Santarem | Portugal | 39.28 | -8.53 | 232 | 4775 |
| Melhorada | city | Santarem | Portugal | 39.35 | -8.56 | 91 | 4326 |
| Melroeira | city | Santarem | Portugal | 39.65 | -8.61 | 830 | 17909 |
| Menexas | city | Santarem | Portugal | 39.75 | -8.34 | 866 | 5107 |
| Menjoelho | city | Santarem | Portugal | 39.62 | -8.37 | 830 | 21282 |
| Mezao Frio | city | Santarem | Portugal | 39.69 | -7.95 | 1020 | 1084 |
| Milheiros | city | Santarem | Portugal | 39.74 | -8.39 | 830 | 4054 |
| Mind | city | Santarem | Portugal | 39.52 | -8.69 | 935 | 12493 |
| Minde | city | Santarem | Portugal | 39.52 | -8.69 | 935 | 12493 |
| Mivaqueiro | city | Santarem | Portugal | 39.58 | -8.16 | 931 | 4423 |
| Mocarria | city | Santarem | Portugal | 39.28 | -8.78 | 262 | 6602 |
| Mocomodia | city | Santarem | Portugal | 39.71 | -8.62 | 830 | 10778 |
| Mogao Cimeiro | city | Santarem | Portugal | 39.59 | -8.15 | 948 | 3785 |
| Mogão Fundeiro | city | Santarem | Portugal | 39.58 | -8.15 | 895 | 4276 |
| Moinhola | city | Santarem | Portugal | 39.18 | -8.37 | 830 | 566 |
| Moita | city | Santarem | Portugal | 39.64 | -8.67 | 1210 | 15923 |
| Moita | city | Santarem | Portugal | 39.47 | -8.45 | 180 | 28766 |
| Moitas | city | Santarem | Portugal | 39.60 | -8.62 | 889 | 9677 |
| Moitas de Baixo | city | Santarem | Portugal | 39.48 | -8.67 | 357 | 12799 |
| Moitas de Cima | city | Santarem | Portugal | 39.50 | -8.67 | 830 | 13191 |
| Monchite | city | Santarem | Portugal | 39.68 | -8.50 | 830 | 6917 |
| Monsanto | city | Santarem | Portugal | 39.46 | -8.71 | 308 | 10509 |
| Montalvinho | city | Santarem | Portugal | 39.48 | -8.30 | 246 | 7180 |
| Montalvo | city | Santarem | Portugal | 39.48 | -8.30 | 246 | 7180 |
| Montargil | city | Santarem | Portugal | 39.53 | -7.85 | 830 | 1042 |
| Monte Cimeiro | city | Santarem | Portugal | 39.58 | -8.11 | 1122 | 3054 |
| Monte Fundeiro | city | Santarem | Portugal | 39.65 | -7.99 | 1253 | 1925 |
| Monte Galego | city | Santarem | Portugal | 39.45 | -8.03 | 331 | 3103 |
| Monte João Dias | city | Santarem | Portugal | 39.55 | -8.02 | 830 | 2772 |
| Monte Novo | city | Santarem | Portugal | 39.00 | -8.29 | 88 | 902 |
| Monte Novo | city | Santarem | Portugal | 39.60 | -8.33 | 862 | 10994 |
| Monte Novo das Ferrarias | city | Santarem | Portugal | 38.90 | -8.26 | 275 | 1199 |
| Monte Penedo | city | Santarem | Portugal | 39.51 | -8.03 | 830 | 3093 |
| Monte Velho | city | Santarem | Portugal | 38.98 | -8.49 | 29 | 9512 |
| Monte da Agolada | city | Santarem | Portugal | 39.01 | -8.56 | 305 | 3762 |
| Monte da Fajarda | city | Santarem | Portugal | 38.97 | -8.60 | 108 | 2022 |
| Monte da Formiga | city | Santarem | Portugal | 38.85 | -8.74 | 98 | 1858 |
| Monte da Foz | city | Santarem | Portugal | 38.98 | -8.84 | 32 | 8184 |
| Monte da Saúde | city | Santarem | Portugal | 38.96 | -8.84 | 26 | 9875 |
| Monte da Silveira | city | Santarem | Portugal | 39.15 | -8.33 | 830 | 697 |
| Monte da Sismaria Nova | city | Santarem | Portugal | 38.85 | -8.54 | 291 | 918 |
| Monte da Torre | city | Santarem | Portugal | 38.80 | -8.53 | 200 | 1083 |
| Monte da Venda | city | Santarem | Portugal | 38.99 | -8.43 | 111 | 1520 |
| Monte da Várzea | city | Santarem | Portugal | 39.12 | -8.55 | 275 | 3252 |
| Monte das Ferrarias | city | Santarem | Portugal | 38.89 | -8.25 | 285 | 1266 |
| Monte das Figueiras | city | Santarem | Portugal | 38.97 | -8.72 | 29 | 6202 |
| Monte das Figueiras de Lavre | city | Santarem | Portugal | 38.81 | -8.58 | 124 | 1157 |
| Monte de Aldeia Velha | city | Santarem | Portugal | 38.91 | -8.29 | 246 | 1045 |
| Monte de Lucas | city | Santarem | Portugal | 38.98 | -8.73 | 127 | 7475 |
| Monte de Pinçais | city | Santarem | Portugal | 38.86 | -8.26 | 275 | 990 |
| Monte do Leão | city | Santarem | Portugal | 39.07 | -8.44 | 830 | 1535 |
| Monte do Pedregulho | city | Santarem | Portugal | 39.42 | -8.10 | 830 | 3427 |
| Monte do Peral | city | Santarem | Portugal | 38.87 | -8.18 | 324 | 1042 |
| Monte do Rosmaninhal | city | Santarem | Portugal | 39.18 | -8.31 | 830 | 565 |
| Monte do Valão | city | Santarem | Portugal | 38.99 | -8.68 | 91 | 4727 |
| Monte do Zé Cadete | city | Santarem | Portugal | 38.85 | -8.81 | 101 | 1710 |
| Monte dos Alhos | city | Santarem | Portugal | 38.95 | -8.49 | 124 | 9279 |
| Monte dos Condes | city | Santarem | Portugal | 38.88 | -8.77 | 9 | 2433 |
| Monte dos Pelados | city | Santarem | Portugal | 38.81 | -8.56 | 131 | 1146 |
| Montelo | city | Santarem | Portugal | 39.60 | -8.65 | 1164 | 13120 |
| Montinho | city | Santarem | Portugal | 39.54 | -7.85 | 830 | 1042 |
| Montinho de Picamilho | city | Santarem | Portugal | 38.95 | -8.62 | 26 | 2275 |
| Moreiras Grandes | city | Santarem | Portugal | 39.58 | -8.50 | 830 | 7574 |
| Moreiras Pequenas | city | Santarem | Portugal | 39.59 | -8.50 | 830 | 7703 |
| Moreta | city | Santarem | Portugal | 39.47 | -8.70 | 324 | 13041 |
| Morgado | city | Santarem | Portugal | 39.11 | -8.74 | 32 | 6492 |
| Mosteiros | city | Santarem | Portugal | 39.43 | -8.84 | 830 | 5132 |
| Mouchao d'Alfange | city | Santarem | Portugal | 39.22 | -8.67 | 72 | 31120 |
| Mouchão d’Alfange | city | Santarem | Portugal | 39.22 | -8.67 | 72 | 31120 |
| Mouriscas | city | Santarem | Portugal | 39.50 | -8.10 | 830 | 5121 |
| Mourolinho | city | Santarem | Portugal | 39.67 | -8.31 | 918 | 5116 |
| Mourual | city | Santarem | Portugal | 39.41 | -8.87 | 413 | 5219 |
| Muge | city | Santarem | Portugal | 39.11 | -8.71 | 108 | 6517 |
| Mulher Morta | city | Santarem | Portugal | 39.64 | -8.60 | 869 | 16556 |
| Murta | city | Santarem | Portugal | 39.32 | -8.49 | 830 | 3926 |
| Murtal | city | Santarem | Portugal | 39.65 | -8.64 | 830 | 17039 |
| Murtal | city | Santarem | Portugal | 39.77 | -8.36 | 1184 | 5050 |
| Murteira | city | Santarem | Portugal | 39.51 | -8.08 | 830 | 4187 |
| Murteira | city | Santarem | Portugal | 39.44 | -8.82 | 830 | 4626 |