| Language (ISO 639-3 code) | Lexicon or Wordlist Source |
| Yagua (yad) | Intercontinental Dictionary Series 2006 |
| Yámana (yag) | Intercontinental Dictionary Series 2006 |
| Yaminahua (yaa) | Intercontinental Dictionary Series 2006 |
| Yanomámi (wca) | Intercontinental Dictionary Series 2006 |
| Yaqui (yaq) | Loanword Typology Database 2009 |
| Yavitero (yvt) | Intercontinental Dictionary Series 2006 |
| Yiddish, Eastern (yid) | Intercontinental Dictionary Series 2006 |
| Yuwana (yau) | Intercontinental Dictionary Series 2006 |