| Name | What | Region | Country | Lat | Long | Elev Ft. | Pop Est |
|---|
| Manseltown | city | Tiobraid Arann | Ireland | 52.7025 | -7.7155556 | 403 | 2850 |
| Mardyke | city | Tiobraid Arann | Ireland | 52.5841667 | -7.6380556 | 538 | 2857 |
| Markhamstown | city | Tiobraid Arann | Ireland | 52.3513889 | -7.8330556 | 252 | 3064 |
| Martfield | city | Tiobraid Arann | Ireland | 52.3477778 | -7.7488889 | 219 | 3629 |
| Mary Villa | city | Tiobraid Arann | Ireland | 52.8341667 | -8.4383333 | 252 | 1931 |
| Mary Ville | city | Tiobraid Arann | Ireland | 52.8341667 | -8.4383333 | 252 | 1931 |
| Maudemount Cross Roads | city | Tiobraid Arann | Ireland | 52.5597222 | -8.0769444 | 429 | 2860 |
| Melbourne Bridge | city | Tiobraid Arann | Ireland | 52.4680556 | -7.6083333 | 206 | 2864 |
| Middlequarter | city | Tiobraid Arann | Ireland | 52.2419444 | -7.8169444 | 803 | 3696 |
| Milestone | city | Tiobraid Arann | Ireland | 52.6752778 | -8.0869444 | 892 | 2850 |
| Moanmore | city | Tiobraid Arann | Ireland | 52.5313889 | -8.2136111 | 269 | 3564 |
| Moanvaun | city | Tiobraid Arann | Ireland | 52.5888889 | -8.1536111 | 574 | 2893 |
| Moanvaun | city | Tiobraid Arann | Ireland | 52.6447222 | -8.1438889 | 987 | 2934 |
| Moat Ville | city | Tiobraid Arann | Ireland | 53.0527778 | -8.0488889 | 262 | 2828 |
| Mocklershill | city | Tiobraid Arann | Ireland | 52.5113889 | -7.8108333 | 501 | 2861 |
| Modreeny | city | Tiobraid Arann | Ireland | 52.9547222 | -8.0580556 | 410 | 2816 |
| Mogh | city | Tiobraid Arann | Ireland | 52.5225 | -8.0244444 | 232 | 2861 |
| Monard | city | Tiobraid Arann | Ireland | 52.5125 | -8.2111111 | 377 | 3564 |
| Monroe Bridge | city | Tiobraid Arann | Ireland | 52.7144444 | -7.9244444 | 295 | 2847 |
| Morpeth Bridge | city | Tiobraid Arann | Ireland | 52.5272222 | -8.0880556 | 328 | 2861 |
| Mortlestown | city | Tiobraid Arann | Ireland | 52.4041667 | -7.8655556 | 321 | 2871 |
| Mount William | city | Tiobraid Arann | Ireland | 52.5097222 | -8.0777778 | 285 | 2861 |
| Moyne | city | Tiobraid Arann | Ireland | 52.7322222 | -7.7127778 | 410 | 2849 |
| Muileann na hUamhan | city | Tiobraid Arann | Ireland | 52.51 | -7.5041667 | 252 | 2863 |
| Mulgrave Bridge | city | Tiobraid Arann | Ireland | 52.6591667 | -7.9527778 | 255 | 2853 |
| Mullenaranky | city | Tiobraid Arann | Ireland | 52.3952778 | -7.6466667 | 124 | 3169 |
| Mullennaglogh | city | Tiobraid Arann | Ireland | 52.4469444 | -7.4677778 | 498 | 2900 |
| Mullinahone | city | Tiobraid Arann | Ireland | 52.51 | -7.5041667 | 252 | 2863 |
| Mullinoly | city | Tiobraid Arann | Ireland | 52.5005556 | -7.5030556 | 255 | 2863 |
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