Encyclopedias, Almanacs, Transcripts, and Maps
- Yoshihito
- Yost, Ed
- Yosu
- Young Pretender
- Young, Geoffrey Winthrop
- Young, John Russell
- Young, John Watts
- Young, Mahonri Mackintosh
- Young, Whitney Moore, Jr.
- Young-Helmholtz theory
- Younger, Cole
- Youngstown State University
- Yousafzai, Malala
- Youskevitch, Igor
- youth-and-old-age
- Ypres, John Denton Pinkstone French, 1st earl of
- Yser
- Yseult
- Yssel
- Ystad