| dif | | Diyari | Pama-Nyungan | 48 |
| dhv | | Dehu | A,
M,
C,
E,
O,
C,
R,
Loyalty Islands | 78 |
| dga | | Dagaare | N,
A,
V,
N,
G,
C,
N,
O,
W,
N,
D,
Dagaari | 48 |
| deu | | German | I,
G,
West Germanic | 76 |
| den | | Slavey | E,
A,
N,
Slavey-Hare | 48 |
| ddj | | Jaru | A,
P,
W,
N,
D,
Ngumbin-Yapa | 76 |
| dbj | | Ida'an | A,
M,
N,
S,
Ida'an | 108 |
| dar | | Dargwa (Icari Dialect) | N,
E,
Dargi | 48 |
| dan | | Danish | I,
G,
N,
E,
D,
D,
Danish | 76 |
| cym | | Welsh-ICR-KQ | I,
C,
I,
B,
Western | 48 |
| cym | | ICR-Welsh-RH | i,
c,
n,
t,
i,
b,
old-modern welsh | 48 |
| cwt | | Kuwaataay (Diembering Dialect) | N,
A,
A,
N,
B,
J,
J,
Kwatay | 44 |
| cup | | Cupeño | U,
N,
T,
Cahuilla | 96 |
| cuk | | Guna San Blas | C,
Kuna | 48 |
| cub | | Cubeo | Tucanoan -> Eastern Tucanoan -> Western- Eastern Tucanoan -> Cubeo Desano | 96 |
| cto | | Embera-Catío | C,
E,
Atrato | 48 |
| csk | | Jola-Kasa (Husuy Dialect) | N,
A,
A,
N,
B,
J,
J,
J,
Jola-Kasa | 44 |
| csb | | Cassubian | I,
S,
W,
Lechitic | 75 |
| crs | | Seselwa Creole French | C,
French based | 48 |
| cro | | Crow | S,
S,
Missouri River Siouan | 96 |
| crn | | Cora-ICR-LB | | 48 |
| crn | | Cora - ICR - KQ | U,
C,
Cora | 48 |
| cri | | Sãotomense | C,
Portuguese based | 48 |
| cou | | Konyagi | N,
A,
A,
N,
E,
Tenda | 44 |
| cof | | Tsafiki | | 48 |
| cmn | | Mandarin | S,
Chinese | 24 |
| cmi | | Embera-Chamí | C,
E,
S,
Upper San Juan | 48 |
| cku | | Koasati | M,
E,
C,
A,
Alabama-Koasati | 48 |
| cjp | | Cabecar | C,
C,
I,
W,
Viceitic | 44 |
| cid | | Chimariko | Language isolate | 48 |
| chu | | Old Church Slavonic | I,
S,
S,
Eastern | 36 |
| cho | | Choctaw | M,
Western Muskogean | 47 |
| chb | | Chibcha | C,
C,
M,
S,
Chibcha-Duit | 0 |
| cha | | Chamorro | A,
M,
Chamorro | 76 |
| ces | | Czech | I,
S,
W,
Czech-Slovak | 76 |
| ceb | | Cebuano | A,
M,
P,
G,
C,
B,
Cebuan | 76 |
| ccj | | Cassanga | N,
A,
A,
N,
E,
Nun | 48 |
| ccg | | Samba Daka | N,
A,
V,
B,
B,
N,
Dakoid | 48 |
| cbv | | Kakua | | 48 |
| cbt | | Shawi | | 0 |
| cbi | | Chachi | | 48 |
| cbg | | Chimila | C,
C,
M,
Northern Magdalenic | 84 |
| cbd | | Carijona | | 48 |
| cbb | | Cabiyarí | | 48 |
| cat | | Catalan | I,
I,
R,
I,
W,
G,
I,
East Iberian | 76 |
| bzu | | Burmeso | E,
Burmeso | 36 |
| bzd | | Bribri | C,
C,
I,
W,
Viceitic | 44 |
| bvr | | Burarra-ICR-LB | | 48 |
| bvr | | Burarra | M,
not nested within Gunwinyguan. | 48 |
| bvr | | Burarra-ICR-RH | m,
b,
burarra | 48 |
