| mgu | dara1252 | Mailu (Darava Dialect) | M,
Mailu | 273 |
| mgu | bore1246 | Mailu (Borebo Dialect) | M,
Mailu | 273 |
| zrs | nucl1594 | Mairasi | Mairasic | 40 |
| mds | mari1438 | Maria (Maranomu Dialect) | Manubaran | 272 |
| mds | mari1438 | Maria | Manubaran | 195 |
| mds | mari1438 | Maria (Maiagolo Dialect) | Manubaran | 264 |
| mds | uder1239 | Maria (Uderi Dialect) | M,
Maria (Papua New Guinea) | 179 |
| ayz | maib1239 | Mai Brat | Maybrat | 41 |
| mso | nucl1452 | Mombum | Mombum-Koneraw | 48 |
| mle | mana1298 | Manambu | N,
N,
Manambu-Yalaku | 43 |
| msf | mekw1241 | Mekwei | N,
Outer Nimboranic | 41 |
| kja | mlap1238 | Mlap | N,
O,
Mlap-Gresi-Kemtuik | 40 |
| wii | mini1253 | Minidien | N,
W,
C,
Wapeic | 42 |
| aax | mand1444 | Mandobo Atas (Kwem Dialect) | N,
A,
A,
G,
A,
D,
Mandobo | 184 |
| aax | mand1444 | Mandobo Atas (Yonggom Dialect) | N,
A,
A,
G,
A,
D,
Mandobo | 82 |
| aax | mand1444 | Mandobo Atas | N,
A,
A,
G,
A,
D,
Mandobo | 367 |
| kts | sout2940 | Muyu, South | N,
A,
A,
O,
O,
L,
Division A Lowland Ok | 100 |
| kti | nort2916 | Muyu, North | N,
A,
A,
O,
O,
L,
Division A Lowland Ok | 102 |
| mpt | mian1256 | Mian | N,
A,
A,
O,
O,
M,
Mianic | 130 |
| mpv | mung1272 | Mungkip | N,
F,
F,
E,
Boana | 165 |
| mhf | mama1277 | Mamaa | N,
F,
F,
E,
Finungwan-Mamaa-Gusan | 55 |
| skc | sauk1252 | Ma Manda | N,
F,
F,
E,
Sauk-Nimi | 53 |
| grg | madi1261 | Madi | N,
F,
F,
G,
Gira-Neko-Nekgini | 57 |
| asx | mura1271 | Muratayak | N,
F,
F,
W,
Nuclear Warup | 52 |
| mlh | mape1249 | Mape (East Dialect) | N,
F,
H,
E,
T,
H,
Kate-Mape | 48 |
| mlh | mape1249 | Mape (West Dialect) | N,
F,
H,
E,
T,
H,
Kate-Mape | 53 |
| mlh | mape1249 | Mape | N,
F,
H,
E,
T,
H,
Kate-Mape | 140 |
| mlh | niga1243 | Mape (Naga Dialect) | N,
F,
H,
E,
T,
H,
K,
Mape | 54 |
| mpp | miga1241 | Migabac | N,
F,
H,
E,
T,
H,
Sopac | 238 |
| msz | moma1243 | Momare | N,
F,
H,
E,
T,
H,
Sopac | 55 |
| mci | mese1244 | Mesem | N,
F,
H,
W,
R,
Sankwep | 192 |
| sks | maia1254 | Maia (Pila Dialect) | N,
M,
C,
G,
N,
Kaukombaran | 361 |
| pla | mian1254 | Miani | N,
M,
C,
G,
N,
Kaukombaran | 341 |
| ped | mala1494 | Mala | N,
M,
C,
G,
N,
Kaukombaran | 347 |
| sks | maia1254 | Maia (Saki Dialect) | N,
M,
C,
G,
N,
Kaukombaran | 357 |
| mhl | mauw1238 | Mauwake | N,
M,
C,
G,
N,
K,
Kumil | 341 |
| mvq | moer1240 | Moere | N,
M,
C,
G,
N,
K,
Kumil | 304 |
| mjj | mawa1266 | Mawak | N,
M,
C,
G,
N,
K,
T,
Nuclear Tibor | 346 |
| mmi | musa1265 | Musar | N,
M,
C,
G,
N,
K,
T,
Nuclear Tibor | 343 |
| mkr | mala1495 | Malas | N,
M,
C,
G,
N,
Manep-Barem | 328 |
| mkr | mala1495 | Manep | N,
M,
C,
G,
N,
Manep-Barem | 20 |
| mcz | mawa1267 | Mawan | N,
M,
C,
M,
H,
Silopic | 363 |
| mqe | mate1260 | Matepi | N,
M,
C,
M,
H,
Unclassified Hanseman | 360 |
| mqw | muru1273 | Murupi | N,
M,
C,
M,
H,
Wamas-Samosa-Murupi-Mosimo | 382 |
| mqv | mosi1248 | Mosimo | N,
M,
C,
M,
H,
Wamas-Samosa-Murupi-Mosimo | 355 |
| mtc | muni1257 | Munit | N,
M,
C,
M,
Kokon | 379 |
| msx | more1258 | Moresada | N,
M,
K,
S,
O,
P,
Anamuxric | 329 |
| payn1244 | Manat | N,
M,
K,
S,
S,
A,
Greater West Sogeram | 46 |
| mmq | musa1266 | Musak | N,
M,
K,
S,
S,
E,
Aisian | 343 |
| kqa | mumm1238 | Mum | N,
M,
K,
S,
S,
North Sogeram | 419 |
