| mcr | meny1245 | Menya | A,
N,
Kapau-Menya | 103 |
| mcv | mina1274 | Minanibai | A,
I,
West Inland Gulf of Papua | 99 |
| tsx | muba1238 | Mubami | A,
I,
West Inland Gulf of Papua | 206 |
| bpv | bian1251 | Marind, Bian | A,
M,
Marindic | 42 |
| mrz | nucl1622 | Marind | A,
M,
Marindic | 40 |
| mrz | gawi1240 | Marind (Gawir Dialect) | A,
M,
M,
M,
Coastal Marind | 52 |
| aup | maka1315 | Makayam | A,
T,
Nuclear Tirio | 0 |
| meu | motu1246 | Motu | A,
M,
E,
O,
W,
P,
P,
C,
West Central Papuan linkage | 280 |
| mhz | morm1235 | Mor (Austronesian) | A,
M,
E,
South Halmahera-West New Guinea | 52 |
| mvr | mara1397 | Marau | A,
M,
E,
S,
C,
Y,
C,
Ansus-Ambai | 18 |
| mth | mung1269 | Munggui | A,
M,
E,
S,
C,
Y,
C,
Central Yapen | 39 |
| slz | maya1282 | Ma'ya | A,
M,
E,
S,
R,
M,
Raja Ampat Maya | 22 |
| gcc | mali1284 | Mali (Makunga Dialect) | Baining | 116 |
| gcc | mali1284 | Mali (Arambum Dialect) | Baining | 102 |
| jet | mane1266 | Manem | B,
W,
Nuclear Warisic | 141 |
| mgf | makl1246 | Maklew | Bulaka River | 41 |
| blb | bilu1245 | Mbaniata (Lokuru Dialect) | Central Solomons | 205 |
| tqu | touo1238 | Mbaniata | Central Solomons | 242 |
| blb | bilu1245 | Mbilua | Central Solomons | 213 |
| blb | bilu1245 | Mbilua (Ndovele Dialect) | Central Solomons | 195 |
| mti | maiw1251 | Maiwa | D,
Central Dagan | 247 |
| mnx | mani1235 | Manikion | East Bird's Head | 42 |
| mej | meya1236 | Meyah (Akrin Dialect) | E,
Meax | 40 |
| mtj | mosk1236 | Moskona | E,
Meax | 38 |
| mej | meya1236 | Meyah (Miun Dialect) | E,
Meax | 40 |
| mtj | mosk1236 | Moskona (Merdey Dialect) | E,
Meax | 40 |
| mej | meya1236 | Meyah | E,
Meax | 39 |
| mej | meya1236 | Meyah (Anason Dialect) | E,
Meax | 40 |
| mej | meya1236 | Meyah (Mumbrani Dialect) | E,
Meax | 41 |
| mej | meya1236 | Meyah (Etskebi Dialect) | E,
Meax | 39 |
| ulk | meri1244 | Meriam | Eastern Trans-Fly | 0 |
| mans1260 | Mansim | Hatam-Mansim | 12 |
| mdb | mori1271 | Morigi | K,
Turama-Kerewo | 99 |
| kpx | moun1252 | Mountain Koiari | K,
K,
Biage-Mountain Koiali | 185 |
| mfw | mula1254 | Mulaha | Kwalean | 150 |
| akc | mpur1239 | Mpur (Kebar Dialect) | Language isolate | 52 |
| akc | mpur1239 | Mpur (Arfu Dialect) | Language isolate | 40 |
| akc | mpur1239 | Mpur | Language isolate | 82 |
| mtf | muri1260 | Murik (Karau Dialect) | L,
Nor | 107 |
| mtf | muri1260 | Murik | L,
Nor | 144 |
| mtf | muri1260 | Murik (Wagamut Dialect) | L,
Nor | 88 |
| mgu | mail1248 | Mailu | Mailuan | 243 |
| mze | mora1273 | Morawa | Mailuan | 56 |
| mgu | ilai1239 | Mailu (Ilai Dialect) | M,
Mailu | 273 |
| mgu | baib1249 | Mailu (Baibara Dialect) | M,
Mailu | 273 |
| mgu | dara1252 | Mailu (Darava Dialect) | M,
Mailu | 273 |
| mgu | geag1239 | Mailu (Geagea Dialect) | M,
Mailu | 273 |
| mgu | isla1273 | Mailu (Island Dialect) | M,
Mailu | 273 |
| mgu | asia1264 | Mailu (Asiaoro Dialect) | M,
Mailu | 273 |
| mgu | dere1243 | Mailu (Delebai Dialect) | M,
Mailu | 273 |
