| 181087 | Sausi | uran | | | Z'graggen (1980) | small |
| 75711 | Savosavo | ɲari | | | Wegener (2011) | |
| 30063 | Sawi | pakəre | | | Voorhoeve (1971) | |
| 90797 | Selepet | tipiŋe | small | | McElhanon (1967) | small |
| 228532 | Seta | saoto | | | SIL (2000) | |
| 202919 | Setaman (Baktamin Dialect) | kʰɑtik̚ | | | Van Cott and Spencer (2010) | |
| 202660 | Setaman (Seltamin Dialect) | kʰɑtʰik̚ | | | Van Cott and Spencer (2010) | |
| 32541 | Siane | kevora | | | Salisbury (1956) | |
| 32129 | Siane | geho | | | SIL (1987) | |
| 74261 | Siane | kéfó | | | Scott (1978) | |
| 199525 | Siawi | nokowanʌ | | | Conrad and Dye (1975) | |
| 125184 | Sihan | naʔak | | | Z'graggen (1980) | small |
| 218602 | Sikaritai | ɛgki | | | Clouse (1997) | |
| 193527 | Sileibi | ñandə | | | Z'graggen (1980) | small |
| 26925 | Silimo | wei | | | Bromley (1967) | |
| 125203 | Silopi | nʌːnag | | | Z'graggen (1980) | small |
| 4908 | Simbari | maalɨka'nya | | | Lloyd (1973) | |
| 258877 | Sinaugoro | kei | | | Dutton (1970) | small |
| 181085 | Sinsauru | faikioro | | | Z'graggen (1980) | small |
| 181094 | Siroi | fudiŋ(do) | | | Z'graggen (1980) | small |
| 30702 | Skou | hápɔ | | | Voorhoeve (1971) | |
| 213867 | Som | misiyi | | | SIL (1968) | |
| 90805 | Somba-Siawari (Burum Dialect) | moroŋi | small | | McElhanon (1967) | small |
| 90800 | Somba-Siawari (Mindik Dialect) | komokŋi | small | | McElhanon (1967) | small |
| 15830 | Sonia | idʌs̪u | | | Shaw (1986) | |
| 181101 | Sop | panam(olo) | | | Z'graggen (1980) | small |
| 2436 | Southern Kiwai (Tureture Dialect) | sobo | | | Wurm (1973) | |
| 17380 | Southern Kiwai | sobo | | | Wurm (1973) | |
| 30871 | Sowanda | wisuk(?) | | | Voorhoeve (1971) | |
| 54146 | Suena | kiaka | small | | Smallhorn (2011) | |
| 28423 | Suena | kiaka | | | Wilson (1969) | |
| 54147 | Suena | [pei] kaka | small | | Smallhorn (2011) | |
| 181103 | Sumau | ayakʌra | | | Z'graggen (1980) | small |
| 181102 | Sumau | misiara | | | Z'graggen (1980) | small |
| 1631 | Tabo | dehapoto | | | Wurm (1973) | |
| 245910 | Tabriak | 'wasakʰʌn | | | SIL (1967) | |
| 245735 | Tabriak | wasakɨn | | | SIL (1990) | |
| 15726 | Tainae | saaigwe' | | | Lloyd (1973) | |
| 74262 | Tairora, North | inara | | | Scott (1978) | |
| 31275 | Tairora, South | pʌtʌ | | | SIL (1976) | |
| 3229 | Tairuma | kaekae | plural | | Brown (1973) | |
| 3177 | Tairuma | keako | singular | | Brown (1973) | |
| 30391 | Tamagario | tapəreak | | | Voorhoeve (1971) | |
| 212096 | Tangko | ɸɑsiˈkɑmbun | | | Hughes (2009) | |
| 212101 | Tangko | ɸɑsiˈkɑmbun | | | Hughes (2009) | |
| 218097 | Tauade | baupiti | | | SIL (1980) | |
| 218588 | Tause | kaβaɾe | | | Clouse (1997) | |
| 218587 | Tause (Deirate Dialect) | kafe | | | Clouse (1997) | |
| 218586 | Tause (Weirate Dialect) | kaɸɾe | | | Clouse (1997) | |
| 193542 | Tauya | kwansama | | | Z'graggen (1980) | small |
