| 236000 | Tabriak | ripay | | | Foley (2005) | |
| 7737 | Tabriak | -ripay | | | Foley (1986) | |
| 245936 | Tabriak | kʌľipe | | | SIL (1967) | |
| 1668 | Tabo | nete'ewa | | | Wurm (1973) | |
| 180952 | Sumau | aʔeri | | | Z'graggen (1980) | two |
| 55449 | Suena (Yema-Yarawe Dialect) | eto | two | | Smallhorn (2011) | |
| 55448 | Suena (Yema-Yarawe Dialect) | etora[bara] | three | | Smallhorn (2011) | |
| 55446 | Suena | eto | two | | Smallhorn (2011) | |
| 55447 | Suena | etoro[bara] | three | | Smallhorn (2011) | |
| 22138 | Suabo | eriwo | | | Voorhoeve (1975) | |
| 19009 | Sowari | pugwai | | | Voorhoeve (1975) | |
| 30883 | Sowanda | sambaga | | | Voorhoeve (1971) | |
| 19290 | Sowanda | sambaga | | | Voorhoeve (1975) | |
| 17417 | Southern Kiwai | netewa | | | Wurm (1973) | |
| 2473 | Southern Kiwai (Tureture Dialect) | netowa | | | Wurm (1973) | |
| 180951 | Sop | akuru | | | Z'graggen (1980) | two |
| 15867 | Sonia | ani | | | Shaw (1986) | |
| 90562 | Somba-Siawari (Mindik Dialect) | wâit | two | | McElhanon (1967) | two |
| 90567 | Somba-Siawari (Burum Dialect) | yahat | two | | McElhanon (1967) | two |
| 213701 | Som | yarʌ | | | SIL (1968) | |
| 25041 | Sobei | daidu | | | Voorhoeve (1975) | |
| 30710 | Skou | hĩ́to | | | Voorhoeve (1971) | |
| 23782 | Skou | hĩto | | | Voorhoeve (1975) | |
| 180945 | Siroi | armba | | | Z'graggen (1980) | two |
| 180938 | Sinsauru | aile | | | Z'graggen (1980) | two |
| 244619 | Sinagen | fiyə | | | Laycock (1968) | |
| 4945 | Simbari | pɨvɨraalna | | | Lloyd (1973) | |
| 125039 | Silopi | beretek | | | Z'graggen (1980) | two |
| 244627 | Siliput | wuríkrŋ | | | Laycock (1968) | |
| 22504 | Silimo (South Ngalik Dialect) | pere | | | Voorhoeve (1975) | |
| 26939 | Silimo | biten | | | Bromley (1967) | |
| 193442 | Sileibi | e:raŋ | | | Z'graggen (1980) | two |
| 24919 | Sikaritai | batia | | | Voorhoeve (1975) | |
| 214656 | Sikaritai | bɛtia | | | Clouse (1997) | |
| 125021 | Sihan | erit | | | Z'graggen (1980) | two |
| 199539 | Siawi | himolo | | | Conrad and Dye (1975) | |
| 32167 | Siane | lele | | | SIL (1987) | |
| 74690 | Siane | lele | | | Scott (1978) | |
| 244610 | Seti | pəna | | | Laycock (1968) | |
| 202710 | Setaman (Seltamin Dialect) | ɛɾɛp | | | Van Cott and Spencer (2010) | |
| 202832 | Setaman (Ngisokabip Dialect) | ɛɾɛp | | | Van Cott and Spencer (2010) | |
| 202969 | Setaman (Baktamin Dialect) | ɛɾɛp | | | Van Cott and Spencer (2010) | |
| 244609 | Seta | pəla | | | Laycock (1968) | |
| 260879 | Serui-Laut | bo-roe | | | Fabritius (1855) | 2 |
| 25523 | Serui-Laut | boru | | | Voorhoeve (1975) | |
| 26167 | Sentani | be | | | Voorhoeve (1975) | |
| 21337 | Sempan | yamina | | | Voorhoeve (1975) | |
| 21617 | Semimi | amoi | | | Voorhoeve (1975) | |
| 90559 | Selepet | yâhâp | two | | McElhanon (1967) | two |
| 20058 | Seget | ali | | | Voorhoeve (1975) | |
