- Yadav
- Yadon
- Yager
- Yake
- Yakymi
- Yale
- Yalova
- Yamaguchi
- Yamanouchi
- Yan
- Yanchuk
- Yanity
- Yankey
- Yansaneh
- Yarabinec
- Yarber
- Yarbrough
- Yatabe
- Yates
- Yatvin
- Yauger
- Yazzolino
- Yeager
- Yeaman
- Yeamans
- Yelin
- Yergen
- Yeung
- Yim
- Yochim
- Yockey
- Yoder
- Yohn
- Yokoyama
- Yon
- Yong
- York
- Yoshida
- Yoshimura
- Youmans
- Youmtoobian
- Young
- Younger
- Younie
- Yragui
- Yu
- Yuan
- Yueh
- Yung
- Yusem