| 23783 | Skou | pa | | | Voorhoeve (1975) | |
| 30713 | Skou | pa | | | Voorhoeve (1971) | |
| 180326 | Siroi | kule | | | Z'graggen (1980) | water |
| 180319 | Sinsauru | ya | | | Z'graggen (1980) | water |
| 258138 | Sinaugoro | nanu | | | Dutton (1970) | water |
| 243914 | Sinagen | wɨn | | | Laycock (1968) | |
| 4958 | Simbari | aalya | | | Lloyd (1973) | |
| 4889 | Simbari | wanya | | | Lloyd (1973) | |
| 124344 | Silopi | de | | | Z'graggen (1980) | water |
| 243922 | Siliput | sifyer | | | Laycock (1968) | |
| 27666 | Silimo (South Ngalik Dialect) | i | | | Voorhoeve (1975) | |
| 27667 | Silimo (South Ngalik Dialect) | ies | | | Voorhoeve (1975) | |
| 26942 | Silimo | ik | | | Bromley (1967) | |
| 193090 | Sileibi | añi | | | Z'graggen (1980) | water |
| 213756 | Sikaritai | wa | | | Clouse (1997) | |
| 24920 | Sikaritai | kwaru | | | Voorhoeve (1975) | |
| 124326 | Sihan | va | | | Z'graggen (1980) | water |
| 199543 | Siawi | wi | | | Conrad and Dye (1975) | |
| 32629 | Siane (Kovena Dialect) | noso | | | Salisbury (1956) | |
| 32142 | Siane | no | | | SIL (1987) | |
| 74760 | Siane | nǒ | | | Scott (1978) | |
| 32517 | Siane | no | | | Salisbury (1956) | |
| 158524 | Sialum | nage | | | McElhanon and Voorhoeve (1970) | water |
| 243905 | Seti | mi: | | | Laycock (1968) | |
| 202691 | Setaman (Seltamin Dialect) | wokʰ | | | Van Cott and Spencer (2010) | |
| 202813 | Setaman (Ngisokabip Dialect) | wokʰ | | | Van Cott and Spencer (2010) | |
| 202950 | Setaman (Baktamin Dialect) | wɔk | | | Van Cott and Spencer (2010) | |
| 243904 | Seta | mi | | | Laycock (1968) | |
| 228547 | Seta | mi | | | SIL (2000) | |
| 25524 | Serui-Laut | marea | | | Voorhoeve (1975) | |
| 26168 | Sentani | bu | | | Voorhoeve (1975) | |
| 158542 | Sene | rapaʔ | | | McElhanon and Voorhoeve (1970) | water |
| 158445 | Sempan | mi | | | McElhanon and Voorhoeve (1970) | water |
| 21338 | Sempan | mi | | | Voorhoeve (1975) | |
| 21618 | Semimi | fate | | | Voorhoeve (1975) | |
| 158534 | Selepet | to | | | McElhanon and Voorhoeve (1970) | water |
| 91217 | Selepet | to | water | | McElhanon (1967) | water |
| 20059 | Seget | kla | | | Voorhoeve (1975) | |
| 30077 | Sawi | a:x | | | Voorhoeve (1971) | |
| 21104 | Sawi | a:x | | | Voorhoeve (1975) | |
| 75620 | Savosavo | piva | | | Wegener (2011) | |
| 180321 | Sausi | yʌ | | | Z'graggen (1980) | water |
| 19534 | Sause | beher | | | Voorhoeve (1975) | |
| 124336 | Saruga | zi: | | | Z'graggen (1980) | water |
| 213737 | Saponi | nɛⁱ-ɛ | | | Clouse (1997) | |
| 224803 | Saniyo-Hiyewe | sa'i | | | Dye et al (1968) | |
| 1312 | Saniyo-Hiyewe | saʔi | | | Macdonald (1973) | |
| 124334 | Samosa | zi: | | | Z'graggen (1980) | water |
| 158468 | Samo | hũ | | | McElhanon and Voorhoeve (1970) | water |
| 5806 | Samo | ho̧u̧ | | | Shaw (1973) | |
