Encyclopedias, Almanacs, Transcripts, and Maps
- Worship and Devotional Life: Jewish Worship
- Worship and Devotional Life: Muslim Worship
- Wrens (Troglodytidae)
- Wurster, Charles Frederick (1930 – ) American Environmental Scientist
- Wyszynski, Cardinal Stefan
- Xenarthra (Sloths, Anteaters, and Armadillos)
- Xenobiotic
- Xi Wang Mu
- Xiao
- Xiao Baozhen
- Xinxing
- Xuanzang
- Xunzi
- Ya?aqov Ben Asher
- Yakut Religion
- Yamaga Sok?
- Yamato Takeru
- Yao and Shun
- Yard Waste
- Yates, Frances Amelia