| Name | What | Region | Country | Lat | Long | Elev ft. | Pop est |
|---|---|---|---|---|---|---|---|
| Maam Cross | city | Galway | Ireland | 53.45 | -9.53 | 830 | 317 |
| Maam Village | city | Galway | Ireland | 53.52 | -9.57 | 157 | 301 |
| Mace | city | Galway | Ireland | 53.39 | -9.02 | 95 | 2970 |
| Magheramore | city | Galway | Ireland | 53.41 | -9.30 | 187 | 1994 |
| Maigh Cuilinn | city | Galway | Ireland | 53.34 | -9.20 | 259 | 2402 |
| Maigh Ghlas | city | Galway | Ireland | 53.06 | -8.47 | 830 | 701 |
| Mairos | city | Galway | Ireland | 53.34 | -9.87 | 75 | 808 |
| Malivey | city | Galway | Ireland | 53.39 | -10.00 | 9 | 529 |
| Manainn Ard | city | Galway | Ireland | 53.19 | -8.76 | 187 | 1974 |
| Manninard | city | Galway | Ireland | 53.19 | -8.76 | 187 | 1974 |
| Maum | city | Galway | Ireland | 53.52 | -9.57 | 157 | 301 |
| Maum East | city | Galway | Ireland | 53.52 | -9.57 | 157 | 301 |
| Maum Village | city | Galway | Ireland | 53.52 | -9.57 | 157 | 301 |
| Maum West | city | Galway | Ireland | 53.52 | -9.57 | 157 | 301 |
| Maíghros | city | Galway | Ireland | 53.34 | -9.87 | 75 | 808 |
| Meelick | city | Galway | Ireland | 53.17 | -8.09 | 180 | 791 |
| Meeneen | city | Galway | Ireland | 53.16 | -8.16 | 180 | 1014 |
| Menlough | city | Galway | Ireland | 53.42 | -8.58 | 249 | 1469 |
| Menlough | city | Galway | Ireland | 53.30 | -9.07 | 29 | 48129 |
| Milltown | city | Galway | Ireland | 53.62 | -8.90 | 150 | 1528 |
| Mionlach | city | Galway | Ireland | 53.30 | -9.07 | 29 | 48129 |
| Mionlach | city | Galway | Ireland | 53.42 | -8.58 | 249 | 1469 |
| Mira | city | Galway | Ireland | 53.38 | -8.81 | 200 | 2498 |
| Moat Bridge | city | Galway | Ireland | 53.14 | -8.29 | 830 | 1470 |
| Moneen East | city | Galway | Ireland | 53.16 | -8.74 | 193 | 1632 |
| Moneymore | city | Galway | Ireland | 53.26 | -8.88 | 29 | 5518 |
| Monivea | city | Galway | Ireland | 53.37 | -8.70 | 249 | 1672 |
| Monroe | city | Galway | Ireland | 53.39 | -8.90 | 88 | 3206 |
| Montiagh | city | Galway | Ireland | 53.35 | -8.97 | 29 | 5868 |
| Montpelier | city | Galway | Ireland | 53.33 | -8.72 | 160 | 3605 |
| Moorfield Cross Roads | city | Galway | Ireland | 53.19 | -8.20 | 246 | 1345 |
| Mount Bellew | city | Galway | Ireland | 53.47 | -8.50 | 246 | 1732 |
| Mount Bellew Bridge | city | Galway | Ireland | 53.47 | -8.50 | 246 | 1732 |
| Mountbellew | city | Galway | Ireland | 53.47 | -8.50 | 246 | 1732 |
| Moy | city | Galway | Ireland | 53.12 | -8.96 | 101 | 1462 |
| Moyard | city | Galway | Ireland | 53.54 | -10.00 | 154 | 1693 |
| Moyascragh | city | Galway | Ireland | 53.38 | -9.20 | 127 | 2395 |
| Moycullen | city | Galway | Ireland | 53.34 | -9.20 | 259 | 2402 |
| Moyglass | city | Galway | Ireland | 53.06 | -8.47 | 830 | 701 |
| Moylough | city | Galway | Ireland | 53.48 | -8.57 | 249 | 1869 |
| Moyrus | city | Galway | Ireland | 53.34 | -9.87 | 75 | 808 |
| Muckanagh | city | Galway | Ireland | 53.17 | -8.15 | 190 | 1107 |
| Muckanaghkillew | city | Galway | Ireland | 53.34 | -9.46 | 249 | 941 |
| Muckareaghederdauhaulia | city | Galway | Ireland | 53.34 | -9.58 | 0 | 1408 |
| Muckrush | city | Galway | Ireland | 53.36 | -9.07 | 65 | 5021 |
| Mucrois | city | Galway | Ireland | 53.36 | -9.07 | 65 | 5021 |
| Muiceanach | city | Galway | Ireland | 53.17 | -8.15 | 190 | 1107 |
| Muiceanach Choille | city | Galway | Ireland | 53.34 | -9.46 | 249 | 941 |
| Muiceanach idir Dha Shaile | city | Galway | Ireland | 53.34 | -9.58 | 0 | 1408 |
| Muine Mheá | city | Galway | Ireland | 53.37 | -8.70 | 249 | 1672 |
| Mullagh | city | Galway | Ireland | 53.22 | -8.42 | 249 | 1098 |
| Mullaghglass | city | Galway | Ireland | 53.60 | -9.93 | 232 | 877 |
| Mulroog | city | Galway | Ireland | 53.18 | -8.94 | 3 | 1701 |
| Míleac | city | Galway | Ireland | 53.17 | -8.09 | 180 | 791 |