- Lucas Julian to Tammy Julian
- Tania Julian to Jay Juliano
- Jean Juliano to Allen Julien
- Allison Julien to Lucien Julien
- Lucille Julien to Michael Julio
- Ortiz Julio to Nicholas Julius
- Nicole Julius to Maria Jumelles
- Luis Jumenez to Leonard Jump
- Leroy Jump to Jackie Jumper
- Jacqueline Jumper to Heung Jun
- Ho Jun to Robert Junceau
- Barbara Junck to Douglas June
- Duane June to Andrea Juneau
- Andrew Juneau to Poonam Juneja
- Rashmi Juneja to Danielle Jung
- Danny Jung to Insook Jung
- Insuk Jung to Linda Jung
- Lindsay Jung to Soohyun Jung
- Soojin Jung to Bruce Junge
- Bryan Junge to Lisa Junghans
- Mark Junghans to Arthur Junior
- Ashley Junior to Mary Junious
- Michael Junious to Harold Junker
- Harry Junker to Walter Junkin
- William Junkin to Manuela Junqueira
- Maria Junqueira to Alexander Jurado
- Alexis Jurado to Jessie Jurado
- Jesus Jurado to Virginia Jurado
- Vivian Jurado to John Jurczyk
- Joseph Jurczyk to Anthony Jurewicz
- Barbara Jurewicz to Kelly Jurgens
- Kenneth Jurgens to Marie Jurgensen
- Mark Jurgensen to Thomas Jurik
- Charles Jurin to Andrius Jurkunas
- William Jurls to Mary Jury
- Matthew Jury to Tomas Jusino
- Vanessa Jusino to Jesse Just
- Jessica Just to Mary Justen
- Michael Justen to Brittney Justice
- Brooke Justice to Essie Justice
- Ester Justice to Julie Justice
- June Justice to Myra Justice
- Myrtle Justice to Teddy Justice
- Teresa Justice to Linda Justin
- Lindsay Justin to Migdalia Justiniano
- Miguel Justiniano to Alejandra Justo
- Alejandro Justo to Dwight Justus
- Dylan Justus to Raymond Justus
- Rebecca Justus to William Jutras
- James Jutson to Matamba Kaalima
- John Kaaloa to Mohamed Kaba
- Mohammed Kaba to Joseph Kabel
- Karen Kabel to Jean Kabore
- Laurent Kabore to Jennifer Kachmar
- John Kachmar to Michael Kaczanowski
- Paul Kaczanowski to Craig Kaczmarek
- Crystal Kaczmarek to Timothy Kaczmarek
- Todd Kaczmarek to Helen Kaczorowski
- Henry Kaczorowski to Donna Kadar
- Edward Kadar to Paul Kader
- Richard Kader to Sidney Kadish
- Stephen Kadish to Doron Kadosh
- Michael Kadosh to Mary Kaefer
- Matthew Kaefer to Kathy Kaelin
- Keith Kaelin to Chris Kaeser
- Christopher Kaeser to Carol Kaffenberger
- David Kaffenberger to Ben Kagan
- Benjamin Kagan to Victor Kagan
- Victoria Kagan to Daniel Kahala
- Douglas Kahala to Robert Kahanek
- Steven Kahanek to Joanne Kahl
- Jody Kahl to Benjamin Kahle
- Bernard Kahle to Abby Kahler
- Adam Kahler to Kelsey Kahler
- Kenneth Kahler to Clarence Kahlig
- David Kahlig to Cindy Kahn
- Claire Kahn to Jeanette Kahn
- Jeanne Kahn to Naeem Kahn
- Nanci Kahn to Travis Kahn
- Tyler Kahn to Bowdeen Kahuhu
- George Kahumoku to Karen Kail
- Kathy Kail to Gary Kain
- George Kain to Wesley Kain
- Wilbert Kain to Ana Kaiser
- Andre Kaiser to Devin Kaiser
- Devon Kaiser to Jerry Kaiser
- Jesse Kaiser to Mario Kaiser
- Marion Kaiser to Sherry Kaiser
- Sherwood Kaiser to Yoko Kajitani
- Akira Kajiwara to Michael Kalahar
- Patrick Kalahar to David Kalas
- Diane Kalas to Jean Kalb
- Jeffrey Kalb to Eric Kalbfleisch
- Gary Kalbfleisch to Jubilee Kale
- Judith Kale to Jessica Kalemba
- John Kalemba to Nicole Kaleta
- Patricia Kaleta to Dennis Kalil
- Diane Kalil to Andrew Kalina
- Ann Kalina to Richard Kalinoski
- Robert Kalinoski to Nicholas Kalinowski
- Nicole Kalinowski to Robert Kalisch
- Scott Kalisch to John Kalista
- Joseph Kalista to Thomas Kalka
- Walter Kalka to George Kallan
- Kathleen Kallan to Kenneth Kallen
- Mary Kallen to Cynthia Kallio
- Daniel Kallio to Brittany Kallon
- Christiana Kallon to Margaret Kalman
- Maria Kalman to Richard Kalmus
- Robert Kalmus to Gurmeet Kalra
- Harish Kalra to Walter Kaltenbach
- William Kaltenbach to Karen Kaluzny
- Lawrence Kaluzny to Lin Kam
- Linda Kam to Omar Kamal
- Preet Kamal to Harold Kamara
- Haroun Kamara to Anuradha Kamath
- Aparna Kamath to Amit Kamboj
- Mukhtiar Kamboj to Robert Kamenicky
- Thomas Kamenicky to Mohamed Kamil
- Mustafa Kamil to Peter Kaminskas
- Robert Kaminskas to Evelyn Kaminski
- Ewa Kaminski to Marie Kaminski
- Marilyn Kaminski to Albert Kaminsky
- Alex Kaminsky to Natalie Kaminsky
- Nathan Kaminsky to Jack Kamm
- Jacob Kamm to Karl Kammer
- Kathleen Kammer to Jessica Kammerer
- Jill Kammerer to Joseph Kamon
- Michael Kamon to Mildred Kamp
- Nancy Kamp to Thomas Kampe
- Vernon Kampe to George Kamphaus
- James Kamphaus to Kenneth Kamps
- Kevin Kamps to John Kamys
- Michael Kamys to Stephen Kana
- Susan Kana to George Kanaly
- James Kanaly to Michael Kandalaft
- Patricia Kandalec to Thomas Kandler
- William Kandler to Briana Kane
- Brianna Kane to Elissa Kane
- Eliza Kane to Jessica Kane
- Jessie Kane to Mame Kane
- Mamoudou Kane to Rosa Kane
- Rosalie Kane to James Kanehl
- Jessica Kanehl to Calvin Kaneshiro
- Carmen Kaneshiro to Angela Kang
- Angie Kang to Gary Kang
- Gene Kang to Jonathan Kang
- Jonathon Kang to Mitchell Kang
- Miyoung Kang to Sun Kang
- Sung Kang to Connie Kangas
- Craig Kangas to Susan Kangas
- Sylvia Kangas to Pamela Kania
- Patricia Kania to Rahim Kanji
- Yasmin Kanji to Subramaniam Kannan
- Sudha Kannan to William Kanning
- John Kannmacher to Joseph Kansky
- James Kansler to Leonard Kanter
- Leslie Kanter to Thomas Kantola
- William Kantola to Matt Kantor
- Matthew Kantor to Ruth Kantzer
- Abdul Kanu to Barbara Kao
- Ben Kao to Rachel Kao
- Randy Kao to Reshma Kapadia
- Rita Kapadia to Michael Kapfhammer
- Patrick Kapfhammer to Annette Kaplan
- Annie Kaplan to Emilia Kaplan
- Emily Kaplan to Jonathan Kaplan
- Jordan Kaplan to Miriam Kaplan
- Mitchell Kaplan to Sylvan Kaplan
- Sylvia Kaplan to Galina Kaplun
- Igor Kaplun to Richa Kapoor
- Rishi Kapoor to Jason Kapp
- Jay Kapp to Cody Kappel
- Connie Kappel to Christopher Kapper
- Daniel Kapper to Harold Kappler
- Harry Kappler to David Kapshandy
- Michael Kapsiak to Irene Kapusta
- Ivan Kapusta to James Karabetsos
- John Karabetsos to Mustafa Karakoc
- Christina Karakos to Patricia Karam
- Paul Karam to Armine Karapetian
- Ashot Karapetian to Jason Karas
- Jean Karas to Margaret Karasek
- Mark Karasek to Julie Karber
- Kenneth Karber to Alice Karcher
- Amanda Karcher to Wendy Karcher
- William Karcher to Karen Kardell
- Kenneth Kardell to Thomas Karel
- Timothy Karel to Herbert Karg
- Jacob Karg to Mary Karges
- Matthew Karges to Ismail Karim
- Jamal Karim to Munira Karimi
- Nader Karimi to Bal Karki
- Bhim Karki to Evan Karl
- Evelyn Karl to Susan Karl
- Suzanne Karl to Frank Karli
- Scott Karli to John Karlo
- Joseph Karlo to Joanne Karlson
- Joe Karlson to David Karmann
- Donna Karmann to Mohan Karnani
- Anthony Karnas to Donald Karnes
- Donna Karnes to Roxanne Karnes
- Roy Karnes to Amanda Karns
- Amber Karns to Sally Karns
- Samantha Karns to Michael Karon
- Nancy Karon to Frieda Karp
- Gail Karp to Sophie Karp
- Stacey Karp to Helen Karpiak
- James Karpiak to Steve Karpinski
- Steven Karpinski to Becky Karr
- Ben Karr to Jim Karr
- Jimmy Karr to Shane Karr
- Shannon Karr to Mark Karrasch
- Mary Karrasch to Kash Karry
- Linda Karry to Jessica Karst
- Jill Karst to Sheri Karsten