| ket | | Ket | Yeniseian | 48 |
| xxk | | Keo (Udiworowatu Dialect) | Central-Malayo-Polynesian | 84 |
| dmo | | Kemedzung | N,
A,
V,
B,
B,
S,
Beboid | 48 |
| sbc | | Kele | A,
M,
C,
E,
O,
A,
E,
M,
East | 84 |
| gyd | | Kayardild | A,
Tangkic | 78 |
| xaw | | Kawaiisu | U,
N,
N,
Southern | 48 |
| krx | | Karon | N,
A,
A,
N,
B,
J,
J,
Karon-Mlomp | 44 |
| xrb | | Karaboro, Eastern | N,
A,
V,
N,
G,
S,
Karaboro | 48 |
| dju | | Kapriman | S,
S,
Bahinemo | 48 |
| kqn | | Kaonde | N,
A,
V,
B,
B,
S,
N,
C,
L,
Kaonde (L.41) | 48 |
| kan | | Kannada | D,
S,
T,
Kannada | 84 |
| pep | | Kánchá | T,
Yam Family | 48 |
| xla | | Kamula | T,
Kamula | 48 |
| kgq | | Kamoro | T,
A,
Kamoro | 109 |
| kms | | Kamasau | T,
Marienberg | 48 |
| ktg | | Kalkutungu | A,
P,
N,
Kalkatungic | 76 |
| kmh | | Kalam | Madang subgroup | 60 |
| mwp | | Kala Lagaw Ya | A,
P,
Northern | 76 |
| cbv | | Kakua | | 48 |
| tbd | | Kaki Ae | T,
E,
Tate | 48 |
| kxa | | Kairiru | A,
M,
C,
E,
O,
W,
N,
S,
K,
Kairiru | 96 |
| kgp | | Kaingang | J,
S,
Kaingang | 48 |
| kpu | | Kafoa | Timor-Alor-Pantar | 48 |
| csk | | Jola-Kasa (Husuy Dialect) | N,
A,
A,
N,
B,
J,
J,
J,
Jola-Kasa | 44 |
| jig | | Jingulu | A,
Mindi | 51 |
| jav | | Javanese | A,
M,
Javanese | 87 |
| ddj | | Jaru | A,
P,
W,
N,
D,
Ngumbin-Yapa | 76 |
| jri | | Jarai | A,
M,
M,
C,
Highlands | 48 |
| djd | | Jaminjung | J,
one of the non-Pama-Nyungan families of northern Australia. | 48 |
| jaa | | Jamamadí (Jarawara Dialect) | A,
Jamamadi | 48 |
| jam | | Jamaican Creole English (London Dialect) | C,
E,
A,
Western | 48 |
| izr | | Izere (Fobur Dialect) | N,
A,
V,
B,
P,
C,
South-Central | 44 |
| ibd | | Iwaidja (Iwaidja Dialect) | Iwaidjan; non-Pama-Nyungan; Australian | 48 |
| itz | | Itza' | M,
Y,
Y,
Mopan-Itzá | 48 |
| ita | | Italian | I,
I,
R,
I,
Italo-Dalmatian | 76 |
| ksi | | I'saka | S,
I'saka | 48 |
| irk | | Iraqw | A,
C,
South | 48 |
| acm | | Iraqi Arabic | A,
S,
C,
S,
Arabic | 48 |
| kal | | Inuktitut (West Greenlandic Dialect) | E,
E,
Inuit-Inupiaq | 48 |
| inh | | Ingush | N,
E,
N,
Chechen-Ingush | 48 |
| inb | | Inga | | 48 |
| ind | | Indonesian (Standard Dialect) | A,
M,
M,
M,
Malay | 48 |
| ind | | Indonesian (Colloquial Jakartan Dialect) | A,
M,
M,
M,
Malay | 48 |
| szp | | Inanwatan | T,
S,
Inanwatan | 77 |
| ibo | | Igbo | N,
A,
V,
B,
I,
Igbo | 48 |
| idi | | Idi | S,
Pahoturi | 76 |
| dbj | | Ida'an | A,
M,
N,
S,
Ida'an | 108 |
| cym | | ICR-Welsh-RH | i,
c,
n,
t,
i,
b,
old-modern welsh | 48 |
| jup | | Hupdë | | 48 |
| hun | | Hungarian | Uralic | 48 |
