| grg | madi1261 | Madi | N,
F,
F,
G,
Gira-Neko-Nekgini | 57 |
| | Magɨ | T,
M,
S,
W,
Emuan | 85 |
| sks | maia1254 | Maia (Pila Dialect) | N,
M,
C,
G,
N,
Kaukombaran | 361 |
| sks | maia1254 | Maia (Saki Dialect) | N,
M,
C,
G,
N,
Kaukombaran | 357 |
| ayz | maib1239 | Mai Brat | Maybrat | 41 |
| mgu | asia1264 | Mailu (Asiaoro Dialect) | M,
Mailu | 273 |
| mgu | baib1249 | Mailu (Baibara Dialect) | M,
Mailu | 273 |
| mgu | isla1273 | Mailu (Island Dialect) | M,
Mailu | 273 |
| mgu | dara1252 | Mailu (Darava Dialect) | M,
Mailu | 273 |
| mgu | bore1246 | Mailu (Borebo Dialect) | M,
Mailu | 273 |
| mgu | ilai1239 | Mailu (Ilai Dialect) | M,
Mailu | 273 |
| mgu | mail1248 | Mailu | Mailuan | 243 |
| mgu | dere1243 | Mailu (Delebai Dialect) | M,
Mailu | 273 |
| mgu | geag1239 | Mailu (Geagea Dialect) | M,
Mailu | 273 |
| mgu | doma1262 | Mailu (Domara Dialect) | M,
Mailu | 273 |
| zrs | nucl1594 | Mairasi | Mairasic | 40 |
| mti | maiw1251 | Maiwa | D,
Central Dagan | 247 |
| mkz | maka1316 | Makasae | T,
East Timor | 100 |
| aup | maka1315 | Makayam | A,
T,
Nuclear Tirio | 0 |
| mgf | makl1246 | Maklew | Bulaka River | 41 |
| ped | mala1494 | Mala | N,
M,
C,
G,
N,
Kaukombaran | 347 |
| mkr | mala1495 | Malas | N,
M,
C,
G,
N,
Manep-Barem | 328 |
| mdc | male1291 | Male | N,
M,
R,
M,
L,
Inland Minjim | 320 |
| gcc | mali1284 | Mali (Arambum Dialect) | Baining | 102 |
| gcc | mali1284 | Mali (Makunga Dialect) | Baining | 116 |
| mhf | mama1277 | Mamaa | N,
F,
F,
E,
Finungwan-Mamaa-Gusan | 55 |
| skc | sauk1252 | Ma Manda | N,
F,
F,
E,
Sauk-Nimi | 53 |
| mle | mana1298 | Manambu | N,
N,
Manambu-Yalaku | 43 |
| payn1244 | Manat | N,
M,
K,
S,
S,
A,
Greater West Sogeram | 46 |
| mqr | mand1443 | Mander | T,
Tor | 37 |
| aax | mand1444 | Mandobo Atas (Kwem Dialect) | N,
A,
A,
G,
A,
D,
Mandobo | 184 |
| aax | mand1444 | Mandobo Atas | N,
A,
A,
G,
A,
D,
Mandobo | 367 |
| aax | mand1444 | Mandobo Atas (Yonggom Dialect) | N,
A,
A,
G,
A,
D,
Mandobo | 82 |
| jet | mane1266 | Manem | B,
W,
Nuclear Warisic | 141 |
| mkr | mala1495 | Manep | N,
M,
C,
G,
N,
Manep-Barem | 20 |
| mnx | mani1235 | Manikion | East Bird's Head | 42 |
| mans1260 | Mansim | Hatam-Mansim | 12 |
| 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 |
| mlh | mape1249 | Mape (East Dialect) | N,
F,
H,
E,
T,
H,
Kate-Mape | 48 |
| wax | wata1253 | Marangis | R,
L,
O,
Watam-Kaian | 65 |
| mvr | mara1397 | Marau | A,
M,
E,
S,
C,
Y,
C,
Ansus-Ambai | 18 |
| mds | mari1438 | Maria (Maranomu Dialect) | Manubaran | 272 |
| mds | uder1239 | Maria (Uderi Dialect) | M,
Maria (Papua New Guinea) | 179 |
| mds | mari1438 | Maria (Maiagolo Dialect) | Manubaran | 264 |
| mds | mari1438 | Maria | Manubaran | 195 |
| mrz | nucl1622 | Marind | A,
M,
Marindic | 40 |
| mrz | gawi1240 | Marind (Gawir Dialect) | A,
M,
M,
M,
Coastal Marind | 52 |
| bpv | bian1251 | Marind, Bian | A,
M,
Marindic | 42 |
