| 199499 | Siawi | nani | | | Conrad and Dye (1975) | |
| 122175 | Sihan | mi | | | Z'graggen (1980) | louse |
| 218835 | Sikaritai | fri | | | Clouse (1997) | |
| 191984 | Sileibi | ima | | | Z'graggen (1980) | louse |
| 30577 | Silimo | nekepɩ | louse (my) | | Bromley (1967) | louse (my) |
| 30578 | Silimo | pɩ | louse (my) | | Bromley (1967) | louse (my) |
| 122192 | Silopi | mi | | | Z'graggen (1980) | louse |
| 4940 | Simbari | ila | | | Lloyd (1973) | |
| 244328 | Sinagen | rarka | | | Laycock (1968) | |
| 260137 | Sinaugoro | ɣutu- | | | Dutton (1970) | louse |
| 178353 | Sinsauru | inɛ | | | Z'graggen (1980) | louse |
| 178360 | Siroi | meu | | | Z'graggen (1980) | louse |
| 82824 | Sirva | ima | | | Daniels (2010) | |
| 30679 | Skou | fi | | | Voorhoeve (1971) | |
| 23767 | Skou | fi | | | Voorhoeve (1975) | |
| 25026 | Sobei | kute | | | Voorhoeve (1975) | |
| 158809 | Som | tʌmʌn | | | McElhanon and Voorhoeve (1970) | louse |
| 213656 | Som | tʌ·mu̶n | | | SIL (1968) | |
| 158838 | Somba-Siawari (Burum Dialect) | imin | | | McElhanon and Voorhoeve (1970) | louse |
| 91421 | Somba-Siawari (Burum Dialect) | imin | louse | | McElhanon (1967) | louse |
| 158839 | Somba-Siawari (Mindik Dialect) | imin | | | McElhanon and Voorhoeve (1970) | louse |
| 91416 | Somba-Siawari (Mindik Dialect) | imin | louse | | McElhanon (1967) | louse |
| 15862 | Sonia | fi | | | Shaw (1986) | |
| 178366 | Sop | mi | | | Z'graggen (1980) | louse |
| 158786 | Southern Kiwai (Tureture Dialect) | nimo | | | McElhanon and Voorhoeve (1970) | louse |
| 2468 | Southern Kiwai (Tureture Dialect) | nimo | | | Wurm (1973) | |
| 17412 | Southern Kiwai | nimo | | | Wurm (1973) | |
| 158784 | Southern Kiwai | nimo | | | McElhanon and Voorhoeve (1970) | louse |
| 30845 | Sowanda | kue | | | Voorhoeve (1971) | |
| 19275 | Sowanda | kue | | | Voorhoeve (1975) | |
| 18994 | Sowari | ami | | | Voorhoeve (1975) | |
| 22123 | Suabo | oro | | | Voorhoeve (1975) | |
| 158857 | Suena | dzimi | | | McElhanon and Voorhoeve (1970) | louse |
| 158783 | Suki | daka | | | McElhanon and Voorhoeve (1970) | louse |
| 178367 | Sumau | mi | | | Z'graggen (1980) | louse |
| 1663 | Tabo | tamani | | | Wurm (1973) | |
| 245765 | Tabriak | kripan | | | SIL (1990) | |
| 245934 | Tabriak | yɩboľokʰui | | | SIL (1967) | |
| 7750 | Tabriak | yam | | | Foley (1986) | |
| 15758 | Tainae | nde' | | | Lloyd (1973) | |
| 73650 | Tairora, North | numa | | | Scott (1978) | |
| 31301 | Tairora, South | rumbuʌ | | | SIL (1976) | |
| 3209 | Tairuma | sarula | | | Brown (1973) | |
| 21642 | Tanahmerah | ia | | | Voorhoeve (1975) | |
| 26072 | Tanahmerah | miŋ | | | Voorhoeve (1975) | |
| 211998 | Tangko | qɯp̚ | | | Hughes (2009) | |
| 25146 | Tarpia | kuʔ | | | Voorhoeve (1975) | |
| 218121 | Tauade | dautʰ | | | SIL (1980) | |
| 218821 | Tause | ɸɾi | | | Clouse (1997) | |
| 218820 | Tause (Deirate Dialect) | ɸiɾe | | | Clouse (1997) | |
