- yuan
- Yuan dynasty
- Yucatan
- Yucatan Peninsula
- Yucatec
- Yucateco
- yucca
- Yucca aloifolia
- Yucca baccata
- Yucca brevifolia
- Yucca carnerosana
- Yucca elata
- Yucca filamentosa
- Yucca glauca
- Yucca gloriosa
- Yucca smalliana
- Yucca whipplei
- yucky
- Yue
- Yue dialect
- Yugoslav
- Yugoslavia
- Yugoslavian
- Yugoslavian dinar
- Yugoslavian monetary unit
- Yukawa
- Yukon
- Yukon River
- Yukon Territory
- Yukon Time
- Yukon white birch
- Yule
- Yule log
- Yuletide
- Yuma
- Yuman
- yummy
- Yunnan
- Yunnan province
- yuppie
- Yurak-Samoyed
- Yuri Alekseyevich Gagarin
- Yuri Gagarin
- yurt