| 25502 | Serui-Laut | beŋ | | | Voorhoeve (1975) | |
| 244357 | Seta | upo | | | Laycock (1968) | |
| 202920 | Setaman (Baktamin Dialect) | ifip | | | Van Cott and Spencer (2010) | |
| 202661 | Setaman (Seltamin Dialect) | ifip | | | Van Cott and Spencer (2010) | |
| 244358 | Seti | ke:fo | | | Laycock (1968) | |
| 73062 | Siane | lálo | | | Scott (1978) | |
| 32186 | Siane | lalo' | | | SIL (1987) | |
| 32543 | Siane | raro | | | Salisbury (1956) | |
| 196473 | Siawi | yaitiuǏɔ | | | Conrad and Dye (1975) | |
| 125052 | Sihan | mɛ:baʔin | | | Z'graggen (1980) | good |
| 220733 | Sikaritai | odako | | | Clouse (1997) | |
| 24898 | Sikaritai | baikola | | | Voorhoeve (1975) | |
| 193458 | Sileibi | zɛrɛ | | | Z'graggen (1980) | good |
| 26245 | Silimo | op | | | Bromley (1967) | |
| 244374 | Siliput | por | | | Laycock (1968) | |
| 125078 | Silopi | porup | | | Z'graggen (1980) | good |
| 4909 | Simbari | kɨorya | | | Lloyd (1973) | |
| 244366 | Sinagen | pwolana | | | Laycock (1968) | |
| 258890 | Sinaugoro | namo | | | Dutton (1970) | good |
| 180966 | Sinsauru | argʌbu | | | Z'graggen (1980) | good |
| 180974 | Siroi | maye(nu) | | | Z'graggen (1980) | good |
| 213873 | Som | uyeb̶ie | | | SIL (1968) | |
| 91099 | Somba-Siawari (Burum Dialect) | âlipŋi | good | | McElhanon (1967) | good |
| 91094 | Somba-Siawari (Mindik Dialect) | âlipŋi | good | | McElhanon (1967) | good |
| 15831 | Sonia | nɔfedi | | | Shaw (1986) | |
| 180980 | Sop | nʌma | | | Z'graggen (1980) | good |
| 2437 | Southern Kiwai (Tureture Dialect) | wade | | | Wurm (1973) | |
| 17381 | Southern Kiwai | wade | | | Wurm (1973) | |
| 19269 | Sowanda | mapenem | | | Voorhoeve (1975) | |
| 30837 | Sowanda | mapenem | | | Voorhoeve (1971) | |
| 18988 | Sowari | nayjuŋgun | | | Voorhoeve (1975) | |
| 22117 | Suabo | soato | | | Voorhoeve (1975) | |
| 50728 | Suena | ewa[nana] | good | | Smallhorn (2011) | |
| 180981 | Sumau | asinʌku | | | Z'graggen (1980) | good |
| 1632 | Tabo | wadiala | | | Wurm (1973) | |
| 27621 | Tabo | hidola | | | Reesink (1976) | |
| 245833 | Tabriak | yapan | | | SIL (1990) | |
| 246001 | Tabriak | yɛpʌkʰ | kʰay yɛpʌkʰ | | SIL (1967) | |
| 245845 | Tabriak | yapakupan | | | SIL (1990) | |
| 15727 | Tainae | naage' | | | Lloyd (1973) | |
| 73063 | Tairora, North | ko'eba | | | Scott (1978) | |
| 31369 | Tairora, South | kuʔemʌ | | | SIL (1976) | |
| 3178 | Tairuma | metaka | | | Brown (1973) | |
| 20519 | Tamagario | roxae | | | Voorhoeve (1975) | |
| 30358 | Tamagario | woxae | | | Voorhoeve (1971) | |
| 21636 | Tanahmerah | saeveve | | | Voorhoeve (1975) | |
| 26066 | Tanahmerah | foy | | | Voorhoeve (1975) | |
| 237249 | Tanggu | ara | | | Foley (2005) | |
| 237248 | Tanggu | swari | | | Foley (2005) | |
| 212107 | Tangko | jæp̚ | | | Hughes (2009) | |
