| mgf | | Maklew | Yelmek-Maklew | 64 |
| | Mblafe | Y,
Tonda Branch | 76 |
| SKF | | Mekens-ICR-RH | t,
t,
n,
akuntsu-mekens | 48 |
| mpt | | Mian | T,
O,
O,
Mountain | 395 |
| aax | | Mandobo | T,
O,
A,
Dumut | 48 |
| mso | | Mombum | T,
Mombum | 48 |
| mhl | | Mauwake | T,
M,
C,
P,
Kumilan | 213 |
| mcr | | Menya | T,
A,
Nuclear Angan | 76 |
| aoj | | Mufian | T,
K,
Arapesh | 48 |
| mkz | | Makalero | T,
Timor | 121 |
| mkv | | Mavea | S,
North Vanuatu sub-group. | 48 |
| cmn | | Mandarin | S,
Chinese | 24 |
| nux | | Mehek | S,
Tama | 36 |
| sim | | Mende | S,
Nukuma | 48 |
| awg | | Mpakwithi | P,
P,
N,
N,
Anguthimri | 48 |
| akc | | Mpur | N,
Isolate | 48 |
| maw | | Mampruli | N,
A,
V,
N,
G,
C,
N,
O,
W,
Southeast | 48 |
| mql | | Mbelimbe | N,
A,
V,
N,
G,
C,
N,
O,
Eastern | 48 |
| mdm | | Mayogo | N,
A,
V,
N,
A,
U,
S,
N,
N,
E,
Mayogo-Bangba | 48 |
| mcs | | Mambay | N,
A,
V,
N,
A,
A,
M,
M,
N,
Tupuri-Mambai | 48 |
| mzm | | Mumuye (Zing Dialect) | N,
A,
V,
N,
A,
A,
L,
M,
Mumuye | 48 |
| gwa | | Mbato | N,
A,
V,
K,
N,
P,
Potou | 48 |
| mij | | Mungbam (Biya Dialect) | N,
A,
V,
B,
B,
S,
Yemne-Kimbi | 48 |
| mij | | Mungbam (Ngun Dialect) | N,
A,
V,
B,
B,
S,
Yemne-Kimbi | 48 |
| mij | | Mungbam (Missong Dialect) | N,
A,
V,
B,
B,
S,
Yemne-Kimbi | 47 |
| mij | | Mungbam (Abar Dialect) | N,
A,
V,
B,
B,
S,
Yemne-Kimbi | 47 |
| mij | | Mungbam (Munken Dialect) | N,
A,
V,
B,
B,
S,
Yemne-Kimbi | 48 |
| ymk | | Makwe | N,
A,
V,
B,
B,
S,
N,
C,
G,
Swahili (G.402) | 48 |
| khk | | Mongolian (Halh Dialect) | M,
E,
O,
K,
Mongolian Proper | 48 |
| mhd | | Mbugu (Normal Dialect) | M,
Bantu-Cushitic | 44 |
| mhd | | Mbugu (Inner Dialect) | M,
Bantu-Cushitic | 44 |
| yan | | Mayangna | M,
S,
Sumuic | 0 |
| miq | | Miskito | M,
Mískito | 0 |
| had | | Mansim | Mansim-Hatam | 48 |
| mkd | | Macedonian | I,
S,
S,
Eastern | 76 |
| mai | | Maithili | I,
I,
I,
E,
Bihari | 48 |
| wtm | | Mewati | I,
I,
I,
C,
Unclassified | 48 |
| unr | | Mundari-ICR-LB | H,
M,
K,
N,
M,
Austroasiatic | 48 |
| ulk | | Meriam | Eastern Trans-Fly | 48 |
| mej | | Meyah | E,
E,
Meax | 48 |
| mtj | | Moskona | E,
E,
Meax | 76 |
| mnx | | Manikion | E,
E,
Mantion | 48 |
| mal | | Malayalam | D,
S,
T,
T,
T,
Malayalam | 48 |
| mfe | | Morisyen | C,
French based | 48 |
| gut | | Malecu | C,
Votic | 28 |
| mak | | Makassarese | A,
M,
S,
Makassar | 76 |
| mwt | | Moken | A,
M,
Moklen | 120 |
| zlm | | Malay | A,
M,
M,
M,
Malay | 48 |
| mad | | Madurese | A,
M,
Madurese | 77 |
| plt | | Malagasy, plateau | A,
M,
G,
E,
Malagasy | 110 |
