| 91021 | Selepet | heleŋ | black | | McElhanon (1967) | black |
| 21585 | Semimi | kasavu | | | Voorhoeve (1975) | |
| 21305 | Sempan | hoake | | | Voorhoeve (1975) | |
| 26135 | Sentani | nokomom | | | Voorhoeve (1975) | |
| 25491 | Serui-Laut | numetaŋ | | | Voorhoeve (1975) | |
| 244498 | Seta | ko:liyo | | | Laycock (1968) | |
| 202990 | Setaman (Baktamin Dialect) | mitʰikʰ | | | Van Cott and Spencer (2010) | |
| 202856 | Setaman (Ngisokabip Dialect) | mitikʰ | | | Van Cott and Spencer (2010) | |
| 202734 | Setaman (Seltamin Dialect) | mitikʰ | | | Van Cott and Spencer (2010) | |
| 244499 | Seti | ko:liyo | | | Laycock (1968) | |
| 32184 | Siane | lumu | | | SIL (1987) | |
| 72326 | Siane | lúm | | | Scott (1978) | |
| 32546 | Siane | rumufa | | | Salisbury (1956) | |
| 196446 | Siawi | tɛwane | | | Conrad and Dye (1975) | |
| 125220 | Sihan | ukuri | | | Z'graggen (1980) | black |
| 217754 | Sikaritai | kig̚jɛ | | | Clouse (1997) | |
| 193544 | Sileibi | kɨnzɨ | | | Z'graggen (1980) | black |
| 26219 | Silimo | sotduk | | | Bromley (1967) | |
| 26264 | Silimo | siŋ | | | Bromley (1967) | |
| 244513 | Siliput | masəŋ | | | Laycock (1968) | |
| 125240 | Silopi | kʌ:tutu | | | Z'graggen (1980) | black |
| 4913 | Simbari | ntɨngampɨnyɨ | | | Lloyd (1973) | |
| 258993 | Sinaugoro | dubara | | | Dutton (1970) | black |
| 181117 | Sinsauru | dugunma | | | Z'graggen (1980) | black |
| 181124 | Siroi | dabukdabuk | | | Z'graggen (1980) | black |
| 23750 | Skou | nembi | | | Voorhoeve (1975) | |
| 30624 | Skou | nɛmbi | | | Voorhoeve (1971) | |
| 213881 | Som | bʌpbʌb̶ie | | | SIL (1968) | |
| 91029 | Somba-Siawari (Burum Dialect) | tâwuŋi | black | | McElhanon (1967) | black |
| 91024 | Somba-Siawari (Mindik Dialect) | indzaŋi | black | | McElhanon (1967) | black |
| 15835 | Sonia | sɔlʌ | | | Shaw (1986) | |
| 181131 | Sop | kumsa | | | Z'graggen (1980) | black |
| 181130 | Sop | kubua | | | Z'graggen (1980) | black |
| 181132 | Sop | gunum | | | Z'graggen (1980) | black |
| 2441 | Southern Kiwai (Tureture Dialect) | wibu | | | Wurm (1973) | |
| 17385 | Southern Kiwai | wibu | | | Wurm (1973) | |
| 19258 | Sowanda | oŋgu | | | Voorhoeve (1975) | |
| 30814 | Sowanda | tap | | | Voorhoeve (1971) | |
| 18977 | Sowari | kapu | | | Voorhoeve (1975) | |
| 22106 | Suabo | udu-dabiro | | | Voorhoeve (1975) | |
| 48105 | Suena | ina[gayai] | black | | Smallhorn (2011) | |
| 181133 | Sumau | upi | | | Z'graggen (1980) | black |
| 27669 | Tabo | bumibumi | | | Reesink (1976) | |
| 1636 | Tabo | bumi-bumi | | | Wurm (1973) | |
| 245998 | Tabriak | yagasɩkʌn | | | SIL (1967) | |
| 245830 | Tabriak | wurukupɨsan | | | SIL (1990) | |
| 15731 | Tainae | paare' | | | Lloyd (1973) | |
| 72327 | Tairora, North | bankora | | | Scott (1978) | |
| 31365 | Tairora, South | upihi ahira | | | SIL (1976) | |
| 3182 | Tairuma | maea uru | | | Brown (1973) | |
