| mbn | | Macaguán | | 88 |
| mkd | | Macedonian | I,
S,
S,
Eastern | 76 |
| wpc | | Maco | | 48 |
| mad | | Madurese | A,
M,
Madurese | 77 |
| mkv | | Mafea | A,
M,
C,
E,
O,
C,
R,
N,
N,
West Santo | 115 |
| mai | | Maithili | I,
I,
I,
E,
Bihari | 48 |
| mkz | | Makalero | T,
Timor | 121 |
| mak | | Makassarese | A,
M,
S,
Makassar | 76 |
| mgf | | Maklew | Yelmek-Maklew | 64 |
| ymk | | Makwe | N,
A,
V,
B,
B,
S,
N,
C,
G,
Swahili (G.402) | 48 |
| plt | | Malagasy, plateau | A,
M,
G,
E,
Malagasy | 110 |
| mpb | | Malak-Malak | A,
Northern Daly | 76 |
| zlm | | Malay | A,
M,
M,
M,
Malay | 48 |
| pmy | | Malay (Papua Dialect) | Austronesian | 48 |
| xmm | | Malay (Manado Dialect) | Austronesian | 48 |
| bpq | | Malay (Banda Dialect) | Austronesian | 48 |
| max | | Malay (North-Moluccan Dialect) | Austronesian | 48 |
| mkn | | Malay (Kupang Dialect) | Austronesian | 48 |
| | Malay (Alor Dialect) | Austronesian | 48 |
| abs | | Malay (Ambon Dialect) | Austronesian | 48 |
| lrt | | Malay (Larantuka Dialect) | Austronesian | 48 |
| mal | | Malayalam | D,
S,
T,
T,
T,
Malayalam | 48 |
| gut | | Malecu | C,
Votic | 28 |
| mcs | | Mambay | N,
A,
V,
N,
A,
A,
M,
M,
N,
Tupuri-Mambai | 48 |
| maw | | Mampruli | N,
A,
V,
N,
G,
C,
N,
O,
W,
Southeast | 48 |
| mnc | | Manchu | A,
T,
S,
Southwest | 48 |
| mht | | Mandahuaca | | 48 |
| cmn | | Mandarin | S,
Chinese | 24 |
| aax | | Mandobo | T,
O,
A,
Dumut | 48 |
| mpc | | Mangarayi | A,
G,
Mangarayic | 48 |
| mnx | | Manikion | E,
E,
Mantion | 48 |
| had | | Mansim | Mansim-Hatam | 48 |
| mri | | Maori | A,
M,
C,
E,
O,
C,
R,
C,
E,
P,
N,
E,
C,
Tahitic | 48 |
| mec | | Mara | A,
G,
M,
Mara | 76 |
| zmr | | Maranunggu | A,
Western Daly | 76 |
| vma | | Martuthunira | A,
P,
W,
N,
S,
Pilbara | 54 |
| dmd | | Mathi-Mathi | A,
Kulin | 59 |
| mhl | | Mauwake | T,
M,
C,
P,
Kumilan | 213 |
| mkv | | Mavea | S,
North Vanuatu sub-group. | 48 |
| yan | | Mayangna | M,
S,
Sumuic | 0 |
| mdm | | Mayogo | N,
A,
V,
N,
A,
U,
S,
N,
N,
E,
Mayogo-Bangba | 48 |
| gwa | | Mbato | N,
A,
V,
K,
N,
P,
Potou | 48 |
| mql | | Mbelimbe | N,
A,
V,
N,
G,
C,
N,
O,
Eastern | 48 |
| | Mblafe | Y,
Tonda Branch | 76 |
| mhd | | Mbugu (Normal Dialect) | M,
Bantu-Cushitic | 44 |
| mhd | | Mbugu (Inner Dialect) | M,
Bantu-Cushitic | 44 |
| nux | | Mehek | S,
Tama | 36 |
| skf | | Mekens-ICR-LB | A,
N,
T,
Tupian | 48 |
| SKF | | Mekens-ICR-RH | t,
t,
n,
akuntsu-mekens | 48 |
| skf | | Mekens_ICR_TCC | | 48 |
