| Name | Country | Feature class | Latitude | Longitude | |
|---|---|---|---|---|---|
4401  | Modroño | Peru, Piura | area | S 4° 11′ 0'' | W 80° 35′ 0'' |
| 4402 | Mochan | Peru, Lambayeque | area | S 8° 26′ 0'' | W 78° 50′ 0'' |
4403  | Moxe Hacienda Moxe,Mocca,Mocce,Moxe | Peru, Lambayeque Lambayeque Province > Lambayeque | populated place | S 6° 40′ 48'' | W 79° 54′ 1'' |
| 4404 | Mocán Hacienda Mocan,Mocan,Mocan Hacienda,Mocán | Peru, La Libertad Ascope > Casa Grande | populated place population 915 | S 7° 39′ 23'' | W 79° 14′ 27'' |
4405  | Mishito | Peru, Loreto | lake | S 6° 41′ 0'' | W 74° 50′ 0'' |
4406  | Cerro Mishahuaca Cerro Misahuaca,Cerro Mishahuaca | Peru, Piura Huancabamba Province > Canchaque | mountain | S 5° 21′ 53'' | W 79° 35′ 51'' |
| 4407 | Hacienda Mira Flores Hacienda Mira Flores,Miraflores,Miraflores Hacienda | Peru, Lambayeque Chiclayo Province > Monsefu | populated place | S 6° 52′ 23'' | W 79° 50′ 14'' |
| 4408 | Hacienda Miraflores Hacienda Miraflores,Miraflores,Miraflores Hacienda | Peru, Piura Paita Province > La Huaca | populated place | S 4° 54′ 50'' | W 80° 52′ 22'' |
| 4409 | Miraflores | Peru, La Libertad | area | S 7° 53′ 0'' | W 79° 13′ 0'' |
| 4410 | Miraflores | Peru, Piura | area | S 4° 50′ 25'' | W 80° 41′ 25'' |
| 4411 | Minchales | Peru, Lambayeque | area | S 6° 0′ 47'' | W 80° 24′ 8'' |
| 4412 | Cerro Muna Cerro Mina,Cerro Muna | Peru, Piura Ayabaca Province > Montero | mountain | S 4° 36′ 43'' | W 79° 54′ 21'' |
| 4413 | Mentiroso Mentiroso | Peru, La Libertad Virú Province | locality | S 8° 48′ 3'' | W 78° 43′ 53'' |
| 4414 | Mendoza  Mendoza,Mondoza,San Nicolas | Peru, Amazonas Rodríguez de Mendoza Province > San Nicolas | seat of a third-order administrative division | S 6° 23′ 40'' | W 77° 28′ 54'' |
| 4415 | Cerro Medio Cerro Medio,Cerro del Medio | Peru, Piura Morropón Province > Salitral | mountain | S 5° 25′ 21'' | W 79° 54′ 11'' |
| 4416 | Cerro El Médano Cerro El Medano,Cerro El Médano,Cerro Medano,Cerro Médano | Peru, Lambayeque Lambayeque Province > Olmos District | mountain | S 6° 3′ 2'' | W 79° 47′ 31'' |
| 4417 | Isla Mayoruna Isla Mayoruna,Isla Mayuruna,Isla San Pablo | Peru, Loreto | island | S 3° 48′ 0'' | W 71° 5′ 0'' |
| 4418 | Cerro Mayordomo Cerro Mayordomo,Mayordomo | Peru, Piura Ayabaca Province > Ayabaca | mountain elevation 3417m | S 4° 42′ 3'' | W 79° 29′ 0'' |
| 4419 | Mayas Mallas,Mayas,Mayas Hacienda | Peru, Ancash Pallasca Province > Conchucos | populated place population 643 | S 8° 16′ 13'' | W 77° 39′ 43'' |
| 4420 | Laguna Mataracocha | Peru, Cajamarca Department | lake | S 7° 7′ 39'' | W 78° 33′ 38'' |
| 4421 | Matalacas | Peru, Piura | area | S 4° 53′ 0'' | W 79° 51′ 0'' |
| 4422 | Marceto Marcelo,Marceto,Mardelo | Peru, Piura Sullana Province > Lancones | populated place | S 4° 19′ 53'' | W 80° 30′ 8'' |
| 4423 | Marabamba | Peru, Ancash Pallasca Province | locality | S 8° 25′ 19'' | W 78° 6′ 8'' |
| 4424 | Lago Mapuya Cocha | Peru, Ucayali | lake | S 9° 34′ 0'' | W 74° 13′ 0'' |
| 4425 | Isla Manití Isla Maniti,Isla Manity,Isla Manití,Islas Maniti | Peru, Loreto | island | S 3° 25′ 0'' | W 72° 51′ 0'' |
| 4426 | Mandorcillo Mandoncillo,Mandoncillo Hacienda,Mandorcillo | Peru, Piura Huancabamba Province | populated place population 86 | S 5° 29′ 6'' | W 79° 24′ 34'' |
| 4427 | Mancucur Mancocur,Mancucur,Mancucur Ciudad | Peru, Piura Huancabamba Province > Sondor | populated place population 241 | S 5° 24′ 6'' | W 79° 21′ 27'' |
| 4428 | Cerro Manchán Cerro Manchal,Cerro Manchan,Cerro Manchán | Peru, Ancash Casma Province > Casma | hill | S 9° 30′ 5'' | W 78° 17′ 28'' |
| 4429 | Mambluque Mambiuque,Mambluque,Mambluque Ciudad | Peru, Piura Morropón Province > Yamango | populated place | S 5° 11′ 13'' | W 79° 52′ 4'' |
| 4430 | Mamayaco Mamallaco,Mamayaco,Mamayaco Hacienda | Peru, Piura Morropón Province > Salitral | populated place population 254 | S 5° 29′ 39'' | W 79° 42′ 36'' |
| 4431 | Mamape Hacienda Mamape,Mamape,Mamape Hacienda | Peru, Lambayeque Ferreñafe Province > Manuel Antonio Mesones Muro | populated place population 173 | S 6° 39′ 22'' | W 79° 45′ 4'' |
| 4432 | Mama Brígida Taita Goyo | Peru, La Libertad | area | S 7° 25′ 3'' | W 79° 29′ 4'' |
| 4433 | Cerro Mal Paso Cerro Mal Paso,Cerro de Malpaso | Peru, Lambayeque Chiclayo Province > Chongoyape | mountain | S 6° 40′ 0'' | W 79° 27′ 11'' |
| 4434 | Malpaso | Peru, La Libertad Provincia de Santiago de Chuco | locality | S 8° 22′ 1'' | W 78° 10′ 13'' |
| 4435 | Mal Paso | Peru, Piura Ayabaca Province | locality | S 4° 29′ 0'' | W 79° 50′ 0'' |
| 4436 | Mal Paso | Peru, Piura | area | S 4° 42′ 0'' | W 80° 48′ 0'' |
| 4437 | Mallaritos Mallarito,Mallarito Hacienda,Mallaritos | Peru, Piura Sullana Province > Marcavelica | populated place | S 4° 51′ 59'' | W 80° 43′ 1'' |
| 4438 | Malingas Hacienda Malingas,Malingas,Malingas Hacienda | Peru, Piura Piura Province > Tambo Grande | populated place population 775 | S 4° 57′ 9'' | W 80° 15′ 2'' |
| 4439 | Malacas | Peru, Tumbes | area | S 3° 29′ 0'' | W 80° 20′ 0'' |
| 4440 | Malaca | Peru, Piura | area | S 4° 30′ 0'' | W 81° 16′ 0'' |
| 4441 | Punta Malabrigo Punta Lobos,Punta Malabrigo,Punta de Lobos,Punta del Lobo | Peru, La Libertad Ascope > Razuri | point | S 7° 42′ 44'' | W 79° 27′ 54'' |
| 4442 | Cerros Majoma Cerros Majoma,Cordillera de Majoma,Cordillera del Majoma | Peru, Cajamarca Department | mountains | S 7° 8′ 0'' | W 78° 38′ 0'' |
| 4443 | Maipuco Maipuco,Malpuco,Urarinas | Peru, Loreto Loreto Province > Urarinas District | populated place | S 4° 49′ 48'' | W 75° 9′ 10'' |
| 4444 | Mahuisha Mahuisha,Mahuiso,Mahuizo | Peru, Loreto Ucayali Province > Sarayacu District | populated place | S 6° 17′ 0'' | W 75° 12′ 0'' |
| 4445 | Macho Muerto | Peru, Piura | area | S 4° 24′ 0'' | W 80° 29′ 0'' |
| 4446 | Machaitambo Machaitambo,Machaitambo Hacienda,Machaytambo | Peru, La Libertad Julcán Province > Carabamba | populated place | S 8° 8′ 40'' | W 78° 30′ 40'' |
| 4447 | Machac Machac,Machacc,Machay | Peru, Ancash Huari Province > Chavin De Huantar | populated place | S 9° 41′ 0'' | W 77° 13′ 0'' |
| 4448 | Isla Macabí Isla Macabi,Isla Macabí,Isla Macavi,Isla de Macabi,Isla de Nacabi,Isla de Nacabí | Peru, La Libertad | island | S 7° 48′ 50'' | W 79° 29′ 57'' |
| 4449 | Macabí Alto Hacienda Macabi,Macabi,Macabi Alto,Macabi Hacienda,Macabí Alto | Peru, La Libertad Ascope > Razuri | populated place population 666 | S 7° 42′ 56'' | W 79° 22′ 10'' |
| 4450 | Cerro de Luya Cerro Luya,Cerro de Luya | Peru, Lambayeque Ferreñafe Province > Manuel Antonio Mesones Muro | hill | S 6° 40′ 24'' | W 79° 41′ 55'' |
by