| srl | isir1237 | Isirawa | Greater Kwerba | 12 |
| ssd | siro1249 | Siroi | T,
M,
R,
Kabenau | 332 |
| ssj | saus1246 | Sausi | T,
M,
R,
Evapia | 361 |
| ssx | samb1321 | Samberigi | T,
E,
Angal-Kewa | 204 |
| stf | seta1245 | Seta | T,
West Wapei | 105 |
| stk | aram1253 | Arammba (Setavi Dialect) | Y,
M,
Tonda | 0 |
| stm | seta1246 | Setaman (Seltamin Dialect) | T,
O,
O,
Mountain | 144 |
| stm | seta1246 | Setaman (Baktamin Dialect) | T,
O,
O,
Mountain | 137 |
| stm | seta1246 | Setaman (Ngisokabip Dialect) | T,
O,
O,
Mountain | 120 |
| sue | suen1241 | Suena (Yema-Yarawe Dialect) | T,
G,
B,
North Binanderean | 97 |
| sue | suen1241 | Suena | T,
G,
B,
North Binanderean | 488 |
| sui | suki1245 | Suki | T,
G,
Suki | 95 |
| svs | savo1255 | Savosavo | Central Solomons | 244 |
| swm | samo1306 | Samosa | T,
M,
C,
Hanseman | 346 |
| szb | ngal1298 | Ngalum | N,
A,
A,
O,
Ok | 33 |
| szp | suab1238 | Suabo | T,
S,
Inanwatan | 40 |
| tad | taus1252 | Tause | L,
T,
West | 203 |
| tad | weir1238 | Tause (Weirate Dialect) | L,
T,
West | 135 |
| tad | deir1239 | Tause (Deirate Dialect) | L,
T,
West | 158 |
| tbd | kaki1249 | Kaki Ae | T,
E,
Tate | 254 |
| tbg | nort2920 | Tairora, North | T,
K,
K,
Tairora | 158 |
| tbp | tawo1244 | Diebroud (Taworta Dialect) | L,
East Lakes Plain | 17 |
| tbp | tawo1244 | Diebroud (Dabra Dialect) | L,
East Lakes Plain | 37 |
| tbv | tobo1251 | Tobo | T,
F,
H,
Western | 189 |
| tcg | tama1336 | Tamagario | T,
Kayagar | 131 |
| tcm | tana1288 | Tanahmerah | T,
Tanah Merah | 81 |
| tcq | kaiy1239 | Kaiy | L,
T,
E,
Doutai-Kai-Waritai | 235 |
| tds | dout1240 | Doutai | L,
T,
E,
Doutai-Kai-Waritai | 255 |
| tei | torr1259 | Torricelli | T,
K,
Kombio | 39 |
| tgu | tang1355 | Tanggu | R,
R,
Tanggu | 72 |
| tif | tifa1245 | Tifal | T,
O,
O,
Mountain | 152 |
| tim | timb1251 | Timbe | T,
F,
H,
Western | 197 |
| tkx | tang1353 | Tangko | T,
O,
O,
Tangko | 217 |
| tlf | tele1256 | Telefol | T,
O,
O,
Mountain | 187 |
| tlg | tofa1246 | Tofanma | Unclassified | 119 |
| tmd | haru1245 | Haruai (Wiyaw Dialect) | Piawi | 113 |
| tmd | haru1245 | Haruai | Piawi | 116 |
| tmj | sama1240 | Samarokena | T,
G,
K,
West Coast | 12 |
| tmu | foii1242 | Lau | L,
T,
C,
Iau | 38 |
| tmu | iauu1242 | Iau | L,
T,
Central Tariku | 262 |
| tni | tand1253 | Tandia | A,
M,
C,
E,
S,
W,
C,
Tandia | 19 |
| tof | waid1239 | Gizra (Waidoro Dialect) | E,
Gizrra | 182 |
| tof | gizr1240 | Gizrra | Eastern Trans-Fly | 1 |
| tof | gizr1240 | Gizra (Kupere Dialect) | Eastern Trans-Fly | 94 |
| tof | gizr1240 | Gizra (Togo Dialect) | Eastern Trans-Fly | 94 |
| tpf | tarp1240 | Tarpia | A,
M,
C,
E,
O,
W,
N,
S,
Sarmi | 25 |
| tpg | kula1280 | Kula | T,
A,
East Alor | 129 |
| tpi | tokp1240 | Tok Pisin | C,
E,
Pacific | 128 |
| tqo | sepo1239 | Toaripi (Sepoe Dialect) | T,
E,
N,
E. | 112 |
| tqo | toar1246 | Toaripi | T,
E,
N,
E. | 114 |
