- Yaeger
- Yager
- Yakubovich
- Yamane
- Yan
- Yandell
- Yanez
- Yang
- Yannutz
- Yap
- Yarbrough
- Yarnes
- Yarnish
- Yarrington
- Yarwood
- Yazzie
- Ybarra
- Yeary
- Yee
- Yelin
- Yescas
- Yetman
- Yetzer
- Yilmaz
- Yingling
- Yockey
- Yocum
- Yonsetto
- Yoon
- Yordy
- York
- Yost
- Youdelman
- Youel
- Youmans
- Young
- Youngblood
- Yrigoyen
- Yslas
- Yuhas
- Yunck
- Yung
- Yurmanovich
- Yusufov
- Yusufova