- Yaary
- Yacker
- Yacobenas
- Yaffe
- Yager
- Yakhnin
- Yakubov
- Yakulis
- Yamamoto
- Yamanow
- Yancy
- Yandola
- Yankanich
- Yankilevich
- Yankowitz
- Yann
- Yannelli
- Yannone
- Yannul
- Yanovitskaya
- Yanovsky
- Yarbrough
- Yaremko
- Yarinich
- Yasui
- Yates
- Yatvin
- Yau
- Yeager
- Yeagle
- Yeargin
- Yeck
- Yee
- Yefimov
- Yeh
- Yelder
- Yelin
- Yellock
- Yelshin
- Yep
- Yerkes
- Yeung
- Yezzi
- Yhost
- Yiantsos
- Yim
- Yoder
- Yodsnukis
- Yoeun
- Yohannan
- Yoka
- Yolkut
- Yollin
- Yon
- Yoo
- Yoon
- York
- Yorkiew
- Yorks
- Yost
- Yotsko
- You
- Young
- Youngblood
- Younger
- Youse
- Yow
- Yu
- Yuan
- Yudkovitz
- Yudovich
- Yukelson
- Yukna
- Yulman
- Yun
- Yung
- Yurchenko
- Yurkanin
- Yusavitz
- Yussen
- Yust
- Yuwono