| 23440 | Zorop | yemar | | | Voorhoeve (1975) | |
| 29029 | Zorop | jemar | | | Voorhoeve (1971) | |
| 27797 | Zimakani (Begua Dialect) | numuŋgi | | | Voorhoeve (1970) | |
| 158811 | Yopno (Nokopo Dialect) | iat | | | McElhanon and Voorhoeve (1970) | louse |
| 158810 | Yopno (Kewieng Dialect) | iyet | | | McElhanon and Voorhoeve (1970) | louse |
| 25380 | Yongkom | um | | | Voorhoeve (1975) | |
| 24007 | Yoke | niŋi | | | Voorhoeve (1975) | |
| 122189 | Yoidik | mi | | | Z'graggen (1980) | louse |
| 244323 | Yis | kwutəl | | | Laycock (1968) | |
| 7642 | Yimas | name | | | Foley (1986) | |
| 164053 | Yimas | wagʌndit | | | Davies and Comrie (1985) | louse |
| 244325 | Yil | namkar | | | Laycock (1968) | |
| 23887 | Yetfa | ni:m | | | Voorhoeve (1975) | |
| 197980 | Yetfa | yim | | | Conrad and Dye (1975) | |
| 244346 | Yessan-Mayo | ni | | | Laycock (1968) | |
| 237781 | Yessan-Mayo | nɨ | | | Foley (2005) | |
| 244347 | Yessan-Mayo (Warasai Dialect) | niʔ | | | Laycock (1968) | |
| 26032 | Yelmek | dobna | | | Voorhoeve (1975) | |
| 20808 | Yei | nim | | | Voorhoeve (1975) | |
| 51871 | Yegha (Oukena Dialect) | jigi | louse | | Smallhorn (2011) | |
| 51881 | Yegha (Korafe Dialect) | 'jiɣi | lice, louse | | Smallhorn (2011) | |
| 196741 | Yawiyo (Wosawari Dialect) | dibafuyei | | | Conrad and Dye (1975) | |
| 73651 | Yaweyuha | nama | | | Scott (1978) | |
| 220898 | Yaweyuha | 'nama | | | SIL (1965) | |
| 20485 | Yawa | eme | | | Voorhoeve (1975) | |
| 158804 | Yau (Yawan Dialect) | imon | | | McElhanon and Voorhoeve (1970) | louse |
| 158803 | Yau (Worin Dialect) | imon | | | McElhanon and Voorhoeve (1970) | louse |
| 158807 | Yau (Sindamon Dialect) | tamʌn | | | McElhanon and Voorhoeve (1970) | louse |
| 158806 | Yau (mup Dialect) | imon | | | McElhanon and Voorhoeve (1970) | louse |
| 158805 | Yau (Mitmit Dialect) | imon | | | McElhanon and Voorhoeve (1970) | louse |
| 158802 | Yau (Kumdauron Dialect) | imon | | | McElhanon and Voorhoeve (1970) | louse |
| 244322 | Yau | kwurəl | | | Laycock (1968) | |
| 141357 | Yarawata | guːn | | | Z'graggen (1980) | louae |
| 223316 | Yaqay (Wanggate Dialect) | nɑmˈbun | | | Kriens & Lebold (2010) | |
| 223085 | Yaqay (Wairu Dialect) | ˈnɑmbun | | | Kriens & Lebold (2010) | |
| 222968 | Yaqay (Rayam Dialect) | nɑmˈbun | | | Kriens & Lebold (2010) | |
| 222683 | Yaqay (Kotup Dialect) | ˈnɑmbun | | | Kriens & Lebold (2010) | |
| 220253 | Yaqay (Kogo Dialect) | nɑmˈbun | | | Kriens & Lebold (2010) | |
| 29137 | Yaqay | nambun | | | Voorhoeve (1971) | |
| 23018 | Yaqay | nambun | | | Voorhoeve (1975) | |
| 158789 | Yaqay | nambun | | | McElhanon and Voorhoeve (1970) | louse |
| 244332 | Yangum Mon | yimul | | | Laycock (1968) | |
| 178377 | Yangulam | gʌtɪ | | | Z'graggen (1980) | louse |
| 261189 | Yamben | aŋgun | | | Pick (2019) | louse |
| 19843 | Yali, Pass Valley | am | | | Voorhoeve (1975) | |
| 24266 | Yali, Angguruk | pɩ | (many men) | | Bromley (1967) | louse (my) |
| 19883 | Yale, Korsarek | ami | | | Voorhoeve (1975) | |
| 33905 | Yale, Korsarek | ami´ | | | Heeschen (1978) | |
| 244336 | Yahang | yaflin | | | Laycock (1968) | |
| 22203 | Yahadian | no | | | Voorhoeve (1975) | |
