- Yahekou Reservoir
- Yahoo Inc.
- Yahoo News
- Yahoo search engine
- Yahoo search engine classification system
- yahtzee
- Yahuaidong
- Yahweh
- Yahya al-Samawi
- Yahya Kemal Beyatlı
- Yahya Taher Abdullah
- Yahya Yakhlif
- Yajiada Ling
- yajiang tussah pongee
- Yajiang Xian
- Yaji tea
- Yajur-veda
- yak
- Yakesa Counterattack War against Russia
- yak hair
- Ya. Khinchin
- Yakhontov's Principle
- Yakhxi Shi
- yak milk
- Yakov Alexandrovich Protazanov