| kpw | | Kobon | T,
M,
Kalam-Kobon | 350 |
| kqi | | Koitabu | T,
S,
K,
Koiaric | 48 |
| kqj | | Koromira | S,
Nasioi | 36 |
| kqn | | Kaonde | N,
A,
V,
B,
B,
S,
N,
C,
L,
Kaonde (L.41) | 48 |
| kru | | Kurukh | North Dravidian | 50 |
| krx | | Karon | N,
A,
A,
N,
B,
J,
J,
Karon-Mlomp | 44 |
| krz | sota1242 | Nggarna | | 0 |
| ksi | | I'saka | S,
I'saka | 48 |
| ktg | | Kalkutungu | A,
P,
N,
Kalkatungic | 76 |
| kup | | Kunimaipa | T,
S,
G,
Kunimaipa | 48 |
| kvn | | Kuna | C,
C,
I,
E,
Kuna | 0 |
| kwa | | Dâw | | 37 |
| kwi | | Awa-Cuaiquer | | 48 |
| kxa | | Kairiru | A,
M,
C,
E,
O,
W,
N,
S,
K,
Kairiru | 96 |
| kxb | | Krobu | N,
A,
V,
K,
N,
P,
T,
Krobu | 44 |
| kxq | smar1235 | Smerki | | 0 |
| kyo | | Klon | T,
A,
Alor | 259 |
| kyx | | Rapoisi | N,
Konua | 54 |
| lat | | Latin | I,
I,
Latino-Faliscan | 82 |
| lbw | | Tolaki | A,
M,
C,
E,
S,
B,
W,
West Coast | 85 |
| lbz | | Lardil | A,
Tangkic | 76 |
| lef | | Lelemi | N,
A,
V,
K,
N,
P,
L,
Lelemi-Akpafu | 48 |
| lep | | Lepcha | S,
T,
C,
Lepcha | 48 |
| lgk | | Neverver | A,
M,
C,
E,
O,
C,
R,
N,
M,
Malekula Central | 48 |
| lgq | | Logba (Alakpeti Dialect) | N,
A,
V,
K,
N,
P,
Logba | 48 |
| lgu | | Longgu | A,
M,
C,
E,
O,
C,
S,
M,
M,
Longgu | 111 |
| lia | | West-Central Limba | N,
A,
A,
S,
Limba | 48 |
| lin | | Lingala | N,
A,
V,
B,
B,
S,
N,
N,
C,
Bangi-Ntomba (C.30) | 48 |
| ljp | | Lampung | A,
M,
Lampung | 76 |
| lmc | | Limilngan | A,
Limilngan-Wulna | 76 |
| lml | | Raga | A,
M,
C,
E,
O,
C,
R,
N,
N,
East Vanuatu | 48 |
| lob | | Lobi | N,
A,
V,
N,
G,
Lobi | 44 |
| los | | Loniu | A,
M,
C,
E,
O,
A,
E,
M,
Mokoreng-Loniu | 76 |
| lpa | | Lelepa | A,
M,
C,
E,
O,
C,
R,
N,
N,
Central Vanuatu | 92 |
| lrt | | Malay (Larantuka Dialect) | Austronesian | 48 |
| mad | | Madurese | A,
M,
Madurese | 77 |
| mai | | Maithili | I,
I,
I,
E,
Bihari | 48 |
| mak | | Makassarese | A,
M,
S,
Makassar | 76 |
| mal | | Malayalam | D,
S,
T,
T,
T,
Malayalam | 48 |
| maw | | Mampruli | N,
A,
V,
N,
G,
C,
N,
O,
W,
Southeast | 48 |
| max | | Malay (North-Moluccan Dialect) | Austronesian | 48 |
| mbj | | Nadëb | | 48 |
| mbn | | Macaguán | | 88 |
| mbp | | Damana | C,
C,
M,
N,
A,
Eastern Arhuacic | 0 |
| mbr | | Nukak Makú | | 48 |
| mcm | | Kristang | C,
Portuguese-based | 76 |
| mcr | | Menya | T,
A,
Nuclear Angan | 76 |
| mcs | | Mambay | N,
A,
V,
N,
A,
A,
M,
M,
N,
Tupuri-Mambai | 48 |
| mdm | | Mayogo | N,
A,
V,
N,
A,
U,
S,
N,
N,
E,
Mayogo-Bangba | 48 |
| mec | | Mara | A,
G,
M,
Mara | 76 |
