| Name | What | Region | Country | Lat | Long | Elev ft. | Pop est |
|---|---|---|---|---|---|---|---|
| Machaycaj | city | Lambayeque | Peru | -6.24 | -79.29 | 11810 | 2977 |
| Macho Muerto | city | Lambayeque | Peru | -5.65 | -80.05 | 830 | 2980 |
| Machuca | city | Lambayeque | Peru | -6.43 | -79.89 | 387 | 14772 |
| Machucara | city | Lambayeque | Peru | -5.99 | -79.56 | 5029 | 1888 |
| Macnape | city | Lambayeque | Peru | -6.51 | -79.99 | 406 | 7997 |
| Macuaco | city | Lambayeque | Peru | -6.81 | -79.23 | 1669 | 3250 |
| Magdalena | city | Lambayeque | Peru | -6.43 | -79.62 | 830 | 3032 |
| Magin | city | Lambayeque | Peru | -6.60 | -79.35 | 1669 | 2319 |
| Mal Paso | city | Lambayeque | Peru | -6.67 | -79.44 | 72 | 3285 |
| Mamagpampa | city | Lambayeque | Peru | -6.08 | -79.29 | 10068 | 5514 |
| Mamape | city | Lambayeque | Peru | -6.66 | -79.75 | 380 | 16933 |
| Mamape Hacienda | city | Lambayeque | Peru | -6.66 | -79.75 | 380 | 16933 |
| Manchay | city | Lambayeque | Peru | -6.19 | -79.45 | 8569 | 2646 |
| Manchurria | city | Lambayeque | Peru | -6.44 | -79.63 | 830 | 3112 |
| Mano de León | city | Lambayeque | Peru | -5.87 | -79.72 | 830 | 874 |
| Manuel Antonio Mesones Muro | city | Lambayeque | Peru | -6.64 | -79.74 | 380 | 15875 |
| Manuel Maria | city | Lambayeque | Peru | -6.78 | -79.60 | 3 | 56012 |
| Maravillas | city | Lambayeque | Peru | -6.53 | -79.89 | 830 | 32412 |
| Maravillas | city | Lambayeque | Peru | -6.53 | -79.89 | 830 | 30992 |
| Marayhuaca | city | Lambayeque | Peru | -6.18 | -79.34 | 10961 | 4573 |
| Maraypampa | city | Lambayeque | Peru | -6.16 | -79.58 | 2624 | 2864 |
| Marcra | city | Lambayeque | Peru | -6.63 | -79.78 | 413 | 31111 |
| Maria Cruz | city | Lambayeque | Peru | -6.75 | -79.86 | 3 | 156374 |
| Maria Del Pilar | city | Lambayeque | Peru | -6.65 | -79.73 | 364 | 14539 |
| Mariátegui | city | Lambayeque | Peru | -6.71 | -79.86 | 19 | 130572 |
| Marripón | city | Lambayeque | Peru | -6.08 | -79.63 | 1197 | 4419 |
| Mata Indio | city | Lambayeque | Peru | -6.93 | -79.55 | 406 | 26189 |
| Matriz Communidad | city | Lambayeque | Peru | -6.43 | -79.81 | 830 | 10714 |
| Mauro | city | Lambayeque | Peru | -6.56 | -79.78 | 830 | 29066 |
| Mauro | city | Lambayeque | Peru | -6.56 | -79.78 | 830 | 32283 |
| Mayascón | city | Lambayeque | Peru | -6.41 | -79.55 | 1732 | 3440 |
| Media Luna | city | Lambayeque | Peru | -6.38 | -79.80 | 387 | 2897 |
| Micracape | city | Lambayeque | Peru | -6.84 | -79.83 | 3 | 89693 |
| Milagro | city | Lambayeque | Peru | -6.79 | -79.70 | 311 | 247342 |
| Mina | city | Lambayeque | Peru | -5.98 | -79.76 | 830 | 9689 |
| Minchales | city | Lambayeque | Peru | -6.00 | -80.37 | 183 | 273 |
| Mirador | city | Lambayeque | Peru | -6.37 | -79.80 | 380 | 2813 |
| Mirador | city | Lambayeque | Peru | -6.59 | -79.39 | 830 | 2865 |
| Miraflores | city | Lambayeque | Peru | -6.87 | -79.84 | 104 | 66754 |
| Miraflores | city | Lambayeque | Peru | -6.17 | -79.51 | 5216 | 1976 |
| Miraflores Hacienda | city | Lambayeque | Peru | -6.87 | -79.84 | 104 | 66754 |
| Mocape | city | Lambayeque | Peru | -5.80 | -79.84 | 830 | 596 |
| Mocca | city | Lambayeque | Peru | -6.68 | -79.90 | 19 | 20215 |
| Mocce | city | Lambayeque | Peru | -6.68 | -79.90 | 19 | 20215 |
| Mochum Viejo | city | Lambayeque | Peru | -6.41 | -79.51 | 1135 | 3782 |
| Mochumi Viejo | city | Lambayeque | Peru | -6.40 | -79.50 | 1669 | 3748 |
| Mochumí | city | Lambayeque | Peru | -6.54 | -79.86 | 830 | 34197 |
| Mocopu | city | Lambayeque | Peru | -6.66 | -79.81 | 367 | 27872 |
| Mocopu Hacienda | city | Lambayeque | Peru | -6.66 | -79.81 | 367 | 27872 |
| Mocupe | city | Lambayeque | Peru | -6.99 | -79.62 | 236 | 7097 |
| Mojon | city | Lambayeque | Peru | -6.59 | -79.37 | 830 | 2526 |
| Mojonazgo | city | Lambayeque | Peru | -6.60 | -79.38 | 830 | 2652 |
| Mojonera | city | Lambayeque | Peru | -6.12 | -79.70 | 830 | 5320 |
| Molino Santa Isabel | city | Lambayeque | Peru | -6.85 | -79.31 | 984 | 3193 |
| Molino del Carmen | city | Lambayeque | Peru | -6.12 | -79.68 | 862 | 5102 |
| Mondragon | city | Lambayeque | Peru | -6.18 | -79.74 | 830 | 5495 |
| Monojera | city | Lambayeque | Peru | -6.12 | -79.70 | 830 | 5320 |
| Monsalve | city | Lambayeque | Peru | -6.53 | -79.85 | 830 | 30096 |
| Monsefú | city | Lambayeque | Peru | -6.87 | -79.87 | 3 | 85188 |
| Monte Cruz | city | Lambayeque | Peru | -7.04 | -79.71 | 29 | 2116 |
| Monte Grande | city | Lambayeque | Peru | -6.54 | -80.03 | 331 | 8197 |
| Monte Hermoso | city | Lambayeque | Peru | -6.47 | -79.95 | 301 | 11237 |
| Monte Verde | city | Lambayeque | Peru | -6.87 | -79.90 | 3 | 62661 |
| Monte Verde | city | Lambayeque | Peru | -6.45 | -79.94 | 311 | 9046 |
| Monte Verde | city | Lambayeque | Peru | -5.73 | -80.19 | 830 | 1741 |
| Montes Maravillas | city | Lambayeque | Peru | -6.18 | -80.02 | 830 | 596 |
| Moradito | city | Lambayeque | Peru | -6.56 | -79.79 | 830 | 36708 |
| Morante | city | Lambayeque | Peru | -5.51 | -80.12 | 1099 | 2329 |
| Morrope | city | Lambayeque | Peru | -6.54 | -80.01 | 393 | 8197 |
| Morropío | city | Lambayeque | Peru | -6.73 | -79.75 | 206 | 15949 |
| Morucaga | city | Lambayeque | Peru | -6.15 | -79.52 | 5905 | 1986 |
| Motupe | city | Lambayeque | Peru | -6.15 | -79.72 | 830 | 5394 |
| Motupillo | city | Lambayeque | Peru | -6.44 | -79.61 | 1669 | 3375 |
| Moxe | city | Lambayeque | Peru | -6.68 | -79.90 | 19 | 20215 |
| Moyan | city | Lambayeque | Peru | -6.01 | -79.54 | 5029 | 1937 |
| Moyopu | city | Lambayeque | Peru | -6.56 | -79.83 | 830 | 48167 |
| Muchumi | city | Lambayeque | Peru | -6.54 | -79.86 | 830 | 34197 |
| Muelle | city | Lambayeque | Peru | -6.72 | -79.94 | 3 | 19119 |
| Mununo | city | Lambayeque | Peru | -6.06 | -79.27 | 8536 | 5037 |
| Mununo | city | Lambayeque | Peru | -6.06 | -79.39 | 9228 | 4188 |
| Muro | city | Lambayeque | Peru | -6.58 | -79.78 | 830 | 39262 |
| Muro | city | Lambayeque | Peru | -6.78 | -79.83 | 3 | 150381 |
| Muro | city | Lambayeque | Peru | -6.76 | -79.87 | 3 | 148663 |
| Mushcalin | city | Lambayeque | Peru | -6.21 | -79.43 | 9228 | 3290 |
| Muyfinca | city | Lambayeque | Peru | -6.64 | -79.91 | 239 | 21383 |
| Muyfinca Hacienda | city | Lambayeque | Peru | -6.64 | -79.91 | 239 | 21383 |
| Muysil | city | Lambayeque | Peru | -6.85 | -79.84 | 3 | 84129 |
| Médano Grande | city | Lambayeque | Peru | -6.82 | -79.76 | 111 | 183476 |