M
- Macabee
- MacDonalds Point
- MacDougall
- MacDougall Settlement
- Maces Bay
- MacIntosh Mill
- Madawaska
- Madran
- Mainstream
- Maisonnette
- Malakoff
- Malauze
- Maliseet
- Maltais
- Maltampec
- Maltempec
- Manners Sutton
- Mannhurst
- Mann Mountain Settlement
- Mann Siding
- Manuels
- Mapledale
- Maple Glen
- Maple Green
- Maple Grove
- Maple Grove Station
- Maplehurst
- Maple Ridge
- Mapleview
- Maplewood
- Maria-de-Kent
- Martin Siding
- Marysville
- Mathias Landing
- Maugerville
- Mavis Mills
- McAdam
- McCluskey
- McDonald Corner
- McEwen
- McGinleys Corner
- McGivney
- McGowans Corner
- McGrath Corner
- McGraw Brook
- McKeaghan
- McKeens Corner
- McKees Mills
- McKendrick
- McKenna
- McKenzie Corner
- McLeod Hill
- McLeods
- McManus Siding
- McMinn
- McMonagle Corner
- McNamee
- McNeish
- McQuade
- Medford
- Meductic
- Meenans Corner
- Melanson Settlement
- Memramcook
- Memramcook East
- Menneval
- Middle Caraquet
- Middle Hainesville
- Middle Kouchibouguac
- Middle Landing
- Middlesex
- Midgic
- Midway
- Milkish
- Millbank
- Mill Cove
- Miller Line Cache
- Millerton
- Millerville
- Millville
- Mineral
- Minto
- Miramachi Road
- Miramichi
- Miscou Centre
- Miscou Harbour
- Miscou Lighthouse
- Miscou Plains
- Mitchells Corner
- Mitchell Settlement
- Mohannes
- Moncton
- Moncton Road
- Monquart
- Montagne-de-la-Croix
- Montagne-des-Roy
- Montagne-des-Therrien
- Monteagle
- Monument
- Moorefield
- Moores Mills
- Moose Meadows Indian Reserve No. 4
- Moose Mountain
- Morais
- Morrell
- Morrison Cove
- Moulin-Morneault
- Mountain Brook
- Mount Pisgah
- Mount Pleasant
- Mountville
- Mundleville
- Muniac
- Munsons Landing
- Murphy Corner
- Murray Corner
- Musquash
