- Maribel Yepez to Mark Yerby
- Marshall Yerby to Michelle Yerger
- Nancy Yerger to Jennifer Yerkes
- Jessica Yerkes to John Yerves
- Thomas Yerves to Jennifer Yetman
- Joan Yetman to Rebecca Yetter
- Richard Yetter to Hin Yeung
- Hing Yeung to Tan Yeung
- Tao Yeung to Bang Yi
- Barbara Yi to Jeong Yi
- Jessica Yi to Seong Yi
- Seung Yi to Kenan Yildirim
- Mehmet Yildirim to Edward Yim
- Elaine Yim to Tae Yim
- Tai Yim to Ming Yin
- Mingzhu Yin to Lai Ying
- Lam Ying to Christopher Yingling
- Christy Yingling to Walter Yingling
- Wayne Yingling to Jennifer Yip
- Jenny Yip to Yun Yip
- Yung Yip to Mary Yntema
- Theodore Yntema to Ryan Yoakum
- Sandra Yoakum to Eric Yochum
- Frank Yochum to Robert Yockey
- Roger Yockey to Cheryl Yocum
- Chester Yocum to Mildred Yocum
- Morgan Yocum to Bob Yoder
- Bobbi Yoder to Emily Yoder
- Emma Yoder to Kaitlin Yoder
- Kaitlyn Yoder to Milton Yoder
- Mindy Yoder to Ted Yoder
- Teresa Yoder to David Yogi
- Hogi Yogi to Louise Yohe
- Margaret Yohe to Stephanie Yohn
- Stephen Yohn to James Yoke
- John Yoke to Richard Yokoyama
- Rie Yokoyama to Jack Yon
- Jackie Yon to Robert Yoneda
- Roy Yoneda to Shirley Yong
- Shu Yong to Lois Yonker
- Marc Yonker to Walter Yonko
- Adam Yonkof to Edwin Yoo
- Elizabeth Yoo to Lena Yoo
- Leslie Yoo to Byoung Yoon
- Byung Yoon to Joe Yoon
- Joey Yoon to Suh Yoon
- Sujin Yoon to George Yorba
- Gilbert Yorba to Andretta York
- Andrew York to Clinton York
- Clyde York to Frieda York
- Gabriel York to Karla York
- Karyn York to Matthew York
- Mattie York to Ronda York
- Ronnie York to Virgina York
- Virginia York to Timothy Yorth
- David Yorton to Kentaro Yoshida
- Kevin Yoshida to Kiyoshi Yoshii
- Sachiko Yoshii to Yuka Yoshino
- Yumi Yoshino to Celia Yost
- Chad Yost to Jennifer Yost
- Jenny Yost to Patrick Yost
- Patty Yost to Dorothy Yothers
- Heather Yothers to Xiao You
- Xin You to Claire Youmans
- Clarence Youmans to Roland Youmans
- Ron Youmans to Samira Younan
- Sandy Younan to Michael Younes
- Mike Younes to Alyse Young
- Alysha Young to Audry Young
- August Young to Brie Young
- Brien Young to Cecile Young
- Cecilia Young to Clarke Young
- Clary Young to Danna Young
- Dannette Young to Deondre Young
- Deonna Young to Eartha Young
- Earvin Young to Eun Young
- Euna Young to Georgene Young
- Georgetta Young to Hezekiah Young
- Hi Young to Janel Young
- Janell Young to Johnathan Young
- Johnathon Young to Kathey Young
- Kathi Young to Korey Young
- Kori Young to Lavell Young
- Lavelle Young to Lorene Young
- Lorenia Young to Margaret Young
- Margareta Young to Merna Young
- Merrell Young to Neta Young
- Nettie Young to Peggie Young
- Peggy Young to Reo Young
- Reta Young to Sami Young
- Sammie Young to Shen Young
- Shena Young to Suzanna Young
- Suzanne Young to Thom Young
- Thomas Young to Vallerie Young
- Vallie Young to Winslow Young
- Winston Young to Lisa Youngberg
- Lori Youngberg to Clementine Youngblood
- Clemon Youngblood to Jackie Youngblood
- Jacob Youngblood to Melvin Youngblood
- Merle Youngblood to Van Youngblood
- Vanessa Youngblood to Charlene Younger
- Charles Younger to Julie Younger
- June Younger to Susan Younger
- Suzanne Younger to Betty Youngman
- Bill Youngman to Chris Youngquist
- Cindy Youngquist to Dawn Youngs
- Dean Youngs to Timothy Youngs
- Tina Youngs to Justin Younker
- Karen Younker to John Younkins
- Joseph Younkins to Jacob Yount
- Jacqueline Yount to Thelma Yount
- Theresa Yount to John Youse
- Joseph Youse to Evelyn Yousif
- Evon Yousif to Eva Youssef
- Ezzat Youssef to Charles Youtsey
- Christopher Youtsey to Roy Yow
- Ruby Yow to Richard Yox
- Robert Yox to Maria Yturralde
- Mary Yturralde to Dana Yu
- Daniel Yu to Huan Yu
- Huang Yu to Kwan Yu
- Kwang Yu to Phillip Yu
- Phoebe Yu to Teresita Yu
- Terrence Yu to Zou Yu
- Zu Yu to Meng Yuan
- Mengqi Yuan to Olga Yudina
- Zoya Yudina to Charles Yuen
- Chau Yuen to Maureen Yuen
- May Yuen to Charles Yuhas
- Cheryl Yuhas to Thomas Yuill
- William Yuill to Michael Yum
- Myung Yum to Jun Yun
- June Yun to Betty Yundt
- Charles Yundt to Philip Yung
- Phillip Yung to Howard Yunker
- Jack Yunker to Gregory Yurchuk
- Michael Yurchuk to John Yurko
- Joseph Yurko to Patricia Yusko
- Paul Yusko to Mohammad Yusufi
- Sahar Yusufi to Geronimo Yzaguirre
- Gilbert Yzaguirre to Gabriela Zabala
- George Zabala to David Zabawa
- Dennis Zabawa to Martin Zabel
- Marvin Zabel to John Zable
- Michael Zable to David Zaboski
- Edward Zaboski to Graciela Zacarias
- Gregorio Zacarias to Nicholas Zaccardi
- Raymond Zaccardi to Mark Zacek
- Matthew Zacek to Benjamin Zacharias
- Betty Zacharias to Walter Zacharias
- Wayne Zacharias to Jessie Zachary
- Jill Zachary to Vincent Zachary
- Virginia Zachary to Jimmy Zachery
- Joann Zachery to Herbert Zachry
- Jackie Zachry to Margaret Zack
- Marie Zack to Andrzej Zaczek
- Barbara Zaczek to Asif Zafar
- Asim Zafar to Edward Zagaiski
- Alejandro Zagal to Joan Zager
- Joe Zager to Morad Zahabian
- George Zahakos to Leonard Zahler
- Linda Zahler to Eva Zahn
- Evelyn Zahn to Sylvia Zahn
- Tammy Zahn to Edward Zahorsky
- George Zahorsky to Fatima Zaidi
- Feroz Zaidi to Mary Zaiser
- Robert Zaiser to Leszek Zajac
- Lewis Zajac to Richard Zajic
- Robert Zajic to Henry Zak
- Igor Zak to Khaled Zakaria
- Mariam Zakaria to Sandra Zaki
- Sarah Zaki to John Zaksek
- Charles Zakskorn to Federico Zaldivar
- Felix Zaldivar to Susan Zalenski
- Ted Zalenski to Teresa Zaleski
- Terry Zaleski to Kristen Zalewski
- Kristin Zalewski to Maurice Zalta
- Max Zalta to Syed Zaman
- Syeda Zaman to Jacqueline Zamarripa
- Jaime Zamarripa to Francisco Zamarron
- Frank Zamarron to Lisa Zambito
- Louis Zambito to Norma Zambrana
- Olga Zambrana to Ender Zambrano
- Enrique Zambrano to Marcelo Zambrano
- Marco Zambrano to Yesenia Zambrano
- Yolanda Zambrano to Adrianna Zamora
- Adrienne Zamora to Cecelia Zamora
- Cecilia Zamora to Ericka Zamora
- Erik Zamora to Isidoro Zamora
- Isidro Zamora to Lucila Zamora
- Lucille Zamora to Pascuala Zamora
- Pat Zamora to Stephany Zamora
- Stephen Zamora to Hector Zamorano
- Henry Zamorano to Michael Zampier
- Anthony Zampieri to Felix Zamudio
- Fermin Zamudio to Reynaldo Zamudio
- Ricardo Zamudio to Michael Zandarski
- Richard Zandarski to Megan Zander
- Meghan Zander to Yvette Zanders
- Cyndee Zandes to Raymond Zane
- Rebecca Zane to Joseph Zanfardino
- Linda Zanfardino to Susan Zanger
- William Zanger to John Zanker
- Joseph Zanki to David Zant
- Don Zant to Antonio Zapata
- Apolinar Zapata to Emily Zapata
- Emma Zapata to Joanne Zapata
- Joaquin Zapata to Nathalie Zapata
- Nathan Zapata to Tom Zapata
- Tomas Zapata to Arturo Zapien
- Astran Zapien to Debra Zapp
- Dorothy Zapp to Sam Zappi
- Amy Zappia to David Zaragosa
- Eduardo Zaragosa to Eric Zaragoza
- Erica Zaragoza to Marisol Zaragoza
- Mark Zaragoza to Abel Zarate