| Name | What | Region | Country | Lat | Long | Elev ft. | Pop est |
|---|---|---|---|---|---|---|---|
| MacMahan | city | Maine | United States | 43.84 | -69.71 | 0 | |
| MacQuillis Corner | city | Maine | United States | 44.61 | -70.16 | 410 | |
| Machias | city | Maine | United States | 44.72 | -67.46 | 45 | |
| Machiasport | city | Maine | United States | 44.70 | -67.39 | 0 | |
| Mackamp | city | Maine | United States | 45.61 | -70.01 | 1210 | |
| Macs Corner | city | Maine | United States | 43.88 | -70.68 | 830 | |
| Macwahoc | city | Maine | United States | 45.63 | -68.26 | 298 | |
| Macy | city | Maine | United States | 44.93 | -70.75 | 1669 | |
| Madawaska | city | Maine | United States | 46.88 | -67.95 | 830 | |
| Madawaska | city | Maine | United States | 47.36 | -68.32 | 830 | |
| Maddocks Corner | city | Maine | United States | 44.34 | -69.29 | 298 | |
| Madison | city | Maine | United States | 44.80 | -69.88 | 265 | |
| Madrid | city | Maine | United States | 44.86 | -70.46 | 895 | |
| Madrid Junction | city | Maine | United States | 44.87 | -70.40 | 830 | |
| Maine | city | Maine | United States | 46.82 | -67.92 | 830 | |
| Mainstream | city | Maine | United States | 44.97 | -69.51 | 830 | |
| Malbons Mills | city | Maine | United States | 44.80 | -69.69 | 206 | |
| Manchester | city | Maine | United States | 44.32 | -69.86 | 324 | |
| Manks Corner | city | Maine | United States | 44.17 | -69.33 | 150 | |
| Manset | city | Maine | United States | 44.27 | -68.31 | 98 | |
| Manson Corner | city | Maine | United States | 44.86 | -69.47 | 298 | |
| Maple Grove | city | Maine | United States | 46.73 | -67.86 | 830 | |
| Mapleton | city | Maine | United States | 46.68 | -68.16 | 830 | |
| Maplewood | city | Maine | United States | 43.67 | -70.91 | 830 | |
| Maranacook | city | Maine | United States | 44.35 | -69.96 | 206 | |
| Margison | city | Maine | United States | 46.92 | -68.14 | 830 | |
| Mariaville | city | Maine | United States | 44.72 | -68.42 | 298 | |
| Mariner | city | Maine | United States | 43.70 | -70.15 | 78 | |
| Marion | city | Maine | United States | 44.88 | -67.32 | 196 | |
| Marks Corner | city | Maine | United States | 44.50 | -68.65 | 360 | |
| Marlboro | city | Maine | United States | 44.48 | -68.27 | 0 | |
| Marrtown | city | Maine | United States | 43.79 | -69.78 | 0 | |
| Mars Hill | city | Maine | United States | 46.52 | -67.87 | 416 | |
| Marsh Corner | city | Maine | United States | 44.88 | -69.32 | 390 | |
| Marshfield | city | Maine | United States | 44.73 | -67.48 | 49 | |
| Marshville | city | Maine | United States | 44.62 | -67.78 | 88 | |
| Marston Corner | city | Maine | United States | 44.05 | -70.28 | 331 | |
| Martells Mobile Home Court | city | Maine | United States | 44.80 | -68.83 | 173 | |
| Martin | city | Maine | United States | 43.97 | -69.36 | 0 | |
| Martin Corner | city | Maine | United States | 44.81 | -69.81 | 830 | |
| Martins Corner | city | Maine | United States | 44.31 | -69.25 | 830 | |
| Martinsville | city | Maine | United States | 43.94 | -69.23 | 0 | |
| Masardis | city | Maine | United States | 46.50 | -68.36 | 830 | |
| Mast Landing | city | Maine | United States | 43.86 | -70.08 | 98 | |
| Matinicus | city | Maine | United States | 43.87 | -68.89 | 0 | |
| Mattawamkeag | city | Maine | United States | 45.51 | -68.35 | 219 | |
| Mattimo Place | city | Maine | United States | 44.82 | -67.64 | 98 | |
| Mayfield Corner | city | Maine | United States | 45.10 | -69.69 | 935 | |
| Maysville | city | Maine | United States | 46.78 | -67.97 | 830 | |
| Mayville | city | Maine | United States | 44.42 | -70.80 | 830 | |
| McCarty | city | Maine | United States | 46.07 | -69.01 | 1200 | |
| McCoy Crossing | city | Maine | United States | 44.44 | -69.64 | 196 | |
| McFarlands Corner | city | Maine | United States | 44.42 | -69.32 | 830 | |
| McGraw | city | Maine | United States | 46.82 | -67.98 | 410 | |
| McGregor Mill | city | Maine | United States | 44.99 | -69.05 | 209 | |
| McKeen Crossing | city | Maine | United States | 46.60 | -68.72 | 830 | |
| McKinley Estates | city | Maine | United States | 43.68 | -70.20 | 32 | |
| McNally | city | Maine | United States | 46.92 | -68.58 | 830 | |
| McShea | city | Maine | United States | 46.76 | -67.85 | 830 | |
| Meadowbrook | city | Maine | United States | 43.83 | -69.85 | 78 | |
| Meadowview | city | Maine | United States | 44.47 | -70.27 | 400 | |
| Meadowville | city | Maine | United States | 45.52 | -68.35 | 265 | |
| Mechanic Falls | city | Maine | United States | 44.11 | -70.39 | 298 | |
| Meddybemps | city | Maine | United States | 45.04 | -67.36 | 183 | |
| Medford | city | Maine | United States | 45.29 | -68.85 | 298 | |
| Medford Center | city | Maine | United States | 45.25 | -68.83 | 298 | |
| Medomak | city | Maine | United States | 44.00 | -69.41 | 0 | |
| Medway | city | Maine | United States | 45.61 | -68.53 | 298 | |
| Mee Corners | city | Maine | United States | 43.64 | -70.95 | 830 | |
| Meeting House Hill | city | Maine | United States | 43.63 | -70.25 | 62 | |
| Melvin Heights | city | Maine | United States | 44.22 | -69.10 | 180 | |
| Mercer | city | Maine | United States | 44.68 | -69.94 | 305 | |
| Merepoint | city | Maine | United States | 43.82 | -70.03 | 0 | |
| Merrill Corner | city | Maine | United States | 43.93 | -70.95 | 830 | |
| Merrow Landing | city | Maine | United States | 44.07 | -70.61 | 400 | |
| Merrymeeting Trailer Park | city | Maine | United States | 43.91 | -69.92 | 39 | |
| Mexico | city | Maine | United States | 44.56 | -70.55 | 830 | |
| Michigan Settlement | city | Maine | United States | 47.23 | -68.53 | 964 | |
| Middle Dam | city | Maine | United States | 44.78 | -70.92 | 1669 | |
| Middle Intervale | city | Maine | United States | 44.46 | -70.79 | 830 | |
| Milbridge | city | Maine | United States | 44.54 | -67.88 | 19 | |
| Miles Corner | city | Maine | United States | 44.86 | -69.30 | 830 | |
| Milford | city | Maine | United States | 44.95 | -68.64 | 114 | |
| Mill Brook | city | Maine | United States | 45.37 | -69.02 | 830 | |
| Miller Corner | city | Maine | United States | 44.88 | -69.36 | 344 | |
| Miller Corner | city | Maine | United States | 43.48 | -70.95 | 830 | |
| Millers Crossing | city | Maine | United States | 43.41 | -70.49 | 91 | |
| Milliken Mills | city | Maine | United States | 43.54 | -70.39 | 91 | |
| Millinocket | city | Maine | United States | 45.66 | -68.71 | 400 | |
| Milltown | city | Maine | United States | 45.17 | -67.29 | 98 | |
| Millvale | city | Maine | United States | 44.63 | -68.77 | 124 | |
| Milo | city | Maine | United States | 45.25 | -68.99 | 298 | |
| Milton | city | Maine | United States | 44.45 | -70.65 | 846 | |
| Mingo Springs | city | Maine | United States | 44.96 | -70.71 | 1669 | |
| Minot | city | Maine | United States | 44.09 | -70.32 | 298 | |
| Minturn | city | Maine | United States | 44.14 | -68.44 | 0 | |
| Mitchell Corner | city | Maine | United States | 44.83 | -69.61 | 305 | |
| Mitchell Corner | city | Maine | United States | 44.67 | -69.27 | 830 | |
| Molunkus | city | Maine | United States | 45.62 | -68.30 | 396 | |
| Monarda | city | Maine | United States | 45.80 | -68.32 | 830 | |
| Monhegan | city | Maine | United States | 43.76 | -69.32 | 0 | |
| Monmouth | city | Maine | United States | 44.24 | -70.04 | 216 | |
| Monroe | city | Maine | United States | 44.62 | -69.02 | 200 | |
| Monroe Center | city | Maine | United States | 44.60 | -69.04 | 249 | |
| Monsapec | city | Maine | United States | 44.61 | -67.60 | 108 | |
| Monson | city | Maine | United States | 45.29 | -69.50 | 964 | |
| Monson Junction | city | Maine | United States | 45.22 | -69.47 | 396 | |
| Monticello | city | Maine | United States | 46.31 | -67.84 | 830 | |
| Montpelier | city | Maine | United States | 44.08 | -69.17 | 65 | |
| Montsweag | city | Maine | United States | 43.96 | -69.72 | 9 | |
| Moody | city | Maine | United States | 43.28 | -70.60 | 45 | |
| Moody | city | Maine | United States | 44.98 | -69.30 | 298 | |
| Moody Beach | city | Maine | United States | 43.28 | -70.58 | 0 | |
| Moody Corner | city | Maine | United States | 45.00 | -69.73 | 898 | |
| Moody Point | city | Maine | United States | 43.29 | -70.57 | 0 | |
| Mooresville | city | Maine | United States | 45.41 | -69.10 | 830 | |
| Moose River | city | Maine | United States | 45.65 | -70.27 | 1187 | |
| Moosehead | city | Maine | United States | 45.58 | -69.71 | 1072 | |
| Moosehorn | city | Maine | United States | 45.23 | -69.49 | 830 | |
| Moosehorn (historical) | city | Maine | United States | 45.39 | -70.79 | 1669 | |
| Moosehorn Crossing | city | Maine | United States | 46.33 | -68.78 | 830 | |
| Mooselookmeguntic | city | Maine | United States | 44.96 | -70.79 | 1669 | |
| Morang Corner | city | Maine | United States | 44.26 | -69.27 | 98 | |
| Morey Brow | city | Maine | United States | 46.29 | -67.96 | 830 | |
| Morgan Beach | city | Maine | United States | 45.27 | -68.56 | 190 | |
| Morkill | city | Maine | United States | 45.43 | -69.50 | 830 | |
| Moro | city | Maine | United States | 46.15 | -68.36 | 830 | |
| Morrill | city | Maine | United States | 44.44 | -69.15 | 242 | |
| Morrills Corner | city | Maine | United States | 43.69 | -70.29 | 68 | |
| Morris Corner | city | Maine | United States | 46.88 | -67.85 | 830 | |
| Morrison Corner | city | Maine | United States | 44.66 | -69.58 | 232 | |
| Moscow | city | Maine | United States | 45.07 | -69.89 | 396 | |
| Mosher Corner | city | Maine | United States | 44.78 | -69.42 | 216 | |
| Mosher Corner | city | Maine | United States | 43.69 | -70.40 | 131 | |
| Mount Pisgah | city | Maine | United States | 43.85 | -69.62 | 91 | |
| Mount Vernon | city | Maine | United States | 44.50 | -69.99 | 347 | |
| Mountainview | city | Maine | United States | 44.97 | -70.76 | 1669 | |
| Mountainview Park | city | Maine | United States | 43.63 | -70.23 | 6 | |
| Mountainville | city | Maine | United States | 44.21 | -68.63 | 3 | |
| Mouse Island | city | Maine | United States | 43.83 | -69.64 | 3 | |
| Moussam | city | Maine | United States | 44.08 | -70.34 | 298 | |
| Mud Landing | city | Maine | United States | 44.86 | -67.45 | 59 | |
| Munjoy Hill | city | Maine | United States | 43.67 | -70.25 | 6 | |
| Murphy Corner | city | Maine | United States | 44.04 | -70.23 | 341 | |
| Murphys Corner | city | Maine | United States | 43.93 | -69.73 | 3 | |
| Muscongus | city | Maine | United States | 43.97 | -69.44 | 0 | |
| Myra | city | Maine | United States | 44.98 | -68.40 | 400 |