| 28430 | Suena | aƀetu | | | Wilson (1969) | |
| 159852 | Suena | aƀɛtu | | | McElhanon and Voorhoeve (1970) | ashes |
| 47575 | Suena | aβetu | ashes | | Smallhorn (2011) | |
| 22104 | Suabo | iboro | | | Voorhoeve (1975) | |
| 18975 | Sowari | caw | | | Voorhoeve (1975) | |
| 30810 | Sowanda | imok | | | Voorhoeve (1971) | |
| 19256 | Sowanda | imok | | | Voorhoeve (1975) | |
| 17368 | Southern Kiwai | tuwo | | | Wurm (1973) | |
| 159777 | Southern Kiwai | tuwo | | | McElhanon and Voorhoeve (1970) | ashes |
| 159779 | Southern Kiwai (Tureture Dialect) | kunaro | | | McElhanon and Voorhoeve (1970) | ashes |
| 2424 | Southern Kiwai (Tureture Dialect) | kunaro | | | Wurm (1973) | |
| 179726 | Sop | kumsʌ sob | | | Z'graggen (1980) | ashes |
| 15818 | Sonia | dufun | | | Shaw (1986) | |
| 159833 | Somba-Siawari (Mindik Dialect) | kau | | | McElhanon and Voorhoeve (1970) | ashes |
| 91318 | Somba-Siawari (Mindik Dialect) | kau | ashes | | McElhanon (1967) | ashes |
| 91323 | Somba-Siawari (Burum Dialect) | kau | ashes | | McElhanon (1967) | ashes |
| 159832 | Somba-Siawari (Burum Dialect) | kau | | | McElhanon and Voorhoeve (1970) | ashes |
| 159801 | Som | kokot | | | McElhanon and Voorhoeve (1970) | ashes |
| 213713 | Som | kókxot | | | SIL (1968) | |
| 23748 | Skou | tö | | | Voorhoeve (1975) | |
| 30620 | Skou | tö | | | Voorhoeve (1971) | |
| 179720 | Siroi | kukɛ tugu | | | Z'graggen (1980) | ashes |
| 179710 | Sinsauru | kwipinim | | | Z'graggen (1980) | ashes |
| 258315 | Sinaugoro | kau | | | Dutton (1970) | ashes (black) |
| 4896 | Simbari | kwaankɨpta | | | Lloyd (1973) | |
| 123665 | Silopi | pa:ᵬ | | | Z'graggen (1980) | ashes |
| 26213 | Silimo | ul | | | Bromley (1967) | |
| 192740 | Sileibi | kʌmi | | | Z'graggen (1980) | ashes |
| 24885 | Sikaritai | keti | | | Voorhoeve (1975) | |
| 123635 | Sihan | omis | | | Z'graggen (1980) | ashes |
| 123636 | Sihan | bopin | | | Z'graggen (1980) | ashes |
| 123637 | Sihan | oris | | | Z'graggen (1980) | ashes |
| 196437 | Siawi | sɩsʌmo | | | Conrad and Dye (1975) | |
| 72119 | Siane | láiná | | | Scott (1978) | |
| 32132 | Siane | laina | | | SIL (1987) | |
| 159826 | Sialum | dziu | | | McElhanon and Voorhoeve (1970) | ashes |
| 202683 | Setaman (Seltamin Dialect) | wɛŋ moɾ | | | Van Cott and Spencer (2010) | |
| 202684 | Setaman (Seltamin Dialect) | kutɛp | | | Van Cott and Spencer (2010) | |
| 202805 | Setaman (Ngisokabip Dialect) | wɛŋ moɾ | | | Van Cott and Spencer (2010) | |
| 202806 | Setaman (Ngisokabip Dialect) | kutɛp | | | Van Cott and Spencer (2010) | |
| 202942 | Setaman (Baktamin Dialect) | kutɛp | | | Van Cott and Spencer (2010) | |
| 228535 | Seta | obisa | | | SIL (2000) | |
| 25489 | Serui-Laut | wawu | | | Voorhoeve (1975) | |
| 26133 | Sentani | ondo-wai | | | Voorhoeve (1975) | |
| 159845 | Sene | dzoeʔ | | | McElhanon and Voorhoeve (1970) | ashes |
| 159878 | Sempan | yuhawa | | | McElhanon and Voorhoeve (1970) | ashes |
| 21303 | Sempan | yuhawa | | | Voorhoeve (1975) | |
| 21583 | Semimi | ua | | | Voorhoeve (1975) | |
| 159837 | Selepet | kɔu | | | McElhanon and Voorhoeve (1970) | ashes |
| 91315 | Selepet | kâu | ashes | | McElhanon (1967) | ashes |
