- Marisa Crowley to Suzanne Crowley
- Sydney Crowley to Lori Crown
- Louis Crown to John Crownover
- Johnny Crownover to Joan Crowson
- Joanne Crowson to Evelyn Crowther
- Felicia Crowther to David Croxford
- James Croxford to Dan Croy
- Dana Croy to Susan Croy
- Suzanne Croy to Brett Crozier
- Brian Crozier to Patricia Crozier
- Patrick Crozier to Ray Cruce
- Rebecca Cruce to Crystal Crudup
- Cynthia Crudup to Heather Cruger
- James Cruger to Christina Cruikshank
- Cynthia Cruikshank to Julie Cruise
- Juliet Cruise to Matt Crull
- Matthew Crull to Darrell Crum
- Darryl Crum to Johnnie Crum
- Johnny Crum to Pearl Crum
- Pearlie Crum to Bonnie Crumb
- Brandon Crumb to Donald Crumble
- Dorothy Crumble to Virginia Crumbley
- Walter Crumbley to William Crumedy
- James Crumel to Justin Crumley
- Karen Crumley to Robert Crummel
- Sheryl Crummel to Candice Crump
- Carl Crump to Gina Crump
- Ginger Crump to Lillian Crump
- Lillie Crump to Roxanne Crump
- Roy Crump to Carolyn Crumpler
- Carrie Crumpler to Walter Crumpler
- Wanda Crumpler to Joan Crumpton
- Joann Crumpton to Denise Crumrine
- Dennis Crumrine to Sandra Crunkleton
- Sharon Crunkleton to Carrie Cruse
- Casey Cruse to Kathryn Cruse
- Kathy Cruse to Trina Cruse
- Troy Cruse to Anna Crutcher
- Anne Crutcher to Kathy Crutcher
- Kaye Crutcher to Alexander Crutchfield
- Alexis Crutchfield to Gertrude Crutchfield
- Gina Crutchfield to Nellie Crutchfield
- Nicholas Crutchfield to Joyce Crute
- Juanita Crute to Aisha Cruz
- Aixa Cruz to Annabelle Cruz
- Annalisa Cruz to Basilio Cruz
- Basilisa Cruz to Carmin Cruz
- Carmina Cruz to Consuela Cruz
- Consuelo Cruz to Desiree Cruz
- Destiny Cruz to Eliseo Cruz
- Elisha Cruz to Evelio Cruz
- Evelisse Cruz to Geovanny Cruz
- Geovany Cruz to Hiram Cruz
- Holanda Cruz to Jayne Cruz
- Jayson Cruz to Juvenal Cruz
- Juvencio Cruz to Lesley Cruz
- Lesli Cruz to Magda Cruz
- Magdalena Cruz to Maximo Cruz
- Maxine Cruz to Nathan Cruz
- Nathanael Cruz to Otilio Cruz
- Oton Cruz to Rena Cruz
- Renae Cruz to Saidel Cruz
- Saira Cruz to Stephania Cruz
- Stephanie Cruz to Venus Cruz
- Venustiano Cruz to Zachary Cruz
- Zahira Cruz to Carol Cruze
- Carolyn Cruze to Brooks Cryder
- Carol Cryder to Gary Cryer
- George Cryer to Brian Crysler
- Charles Crysler to Wendy Crystal
- William Crystal to Laszlo Csogor
- Anna Csoka to Karla Cuadra
- Katherine Cuadra to Pedro Cuadrado
- Pilar Cuadrado to Frank Cuaresma
- Gloria Cuaresma to Iray Cuba
- Jacqueline Cuba to Daniel Cubbage
- Danny Cubbage to John Cuber
- Abraham Cubero to Jorge Cubillo
- Jose Cubillo to William Cucchi
- Adam Cucchiara to Joseph Cuccinelli
- Albert Cuccinello to John Cuckler
- Mary Cuckler to Jean Cudd
- Jeff Cudd to Helen Cuddy
- Howard Cuddy to Terry Cude
- Thomas Cude to Lisa Cudworth
- Mary Cudworth to Jose Cuella
- Juan Cuella to Dustin Cuellar
- Ed Cuellar to Jocelyn Cuellar
- Joe Cuellar to Oralia Cuellar
- Orlando Cuellar to Alejandro Cuello
- Alexandra Cuello to Carmen Cuenca
- Carolina Cuenca to Armando Cuervo
- Arturo Cuervo to Julio Cuesta
- Karen Cuesta to Hilda Cueto
- Humberto Cueto to Emma Cueva
- Enrique Cueva to Alma Cuevas
- Alondra Cuevas to Courtney Cuevas
- Craig Cuevas to Frances Cuevas
- Francesca Cuevas to Julian Cuevas
- Juliana Cuevas to Mike Cuevas
- Miladys Cuevas to Sabrina Cuevas
- Sal Cuevas to Cheryl Cuff
- Chris Cuff to Brandon Cuffe
- Brian Cuffe to John Cuffman
- Mary Cuffman to Xiaoli Cui
- Xiaoling Cui to Jackie Culberson
- James Culberson to Edwin Culbert
- Elizabeth Culbert to Christian Culbertson
- Christie Culbertson to Kathy Culbertson
- Katie Culbertson to Sylvester Culbertson
- Sylvia Culbertson to Rita Culbreath
- Robert Culbreath to Muriel Culbreth
- Nancy Culbreth to Scott Culhane
- Sean Culhane to Russell Cull
- Ruth Cull to Clarence Cullen
- Claudia Cullen to Josephine Cullen
- Josh Cullen to Robert Cullen
- Roberta Cullen to Cathy Culler
- Chad Culler to Wendy Culler
- William Culler to Gary Culley
- George Culley to Lisa Cullifer
- Mark Cullifer to Joan Cullinan
- Joanne Cullinan to Connie Cullins
- Crystal Cullins to Camisha Cullison
- Carl Cullison to Richard Culliton
- Robert Culliton to Colleen Cullough
- Corey Cullough to Glenda Cullum
- Grace Cullum to Barbara Cully
- Brent Cully to John Culotta
- Joseph Culotta to Darrin Culp
- Darryl Culp to Kayla Culp
- Keith Culp to Ryan Culp
- Sabrina Culp to Carrie Culpepper
- Carroll Culpepper to Joey Culpepper
- John Culpepper to Rosie Culpepper
- Roy Culpepper to Terry Culton
- Thomas Culton to Dave Culver
- David Culver to Johnny Culver
- Jon Culver to Pamela Culver
- Passiona Culver to Jerry Culverhouse
- John Culverhouse to Luis Cumbe
- Manuel Cumbe to Simeon Cumberbatch
- Sonia Cumberbatch to Dana Cumberledge
- Danny Cumberledge to Robert Cumbie
- Robin Cumbie to David Cuming
- Donavon Cuming to Elaine Cumming
- Eleanor Cumming to Rebecca Cummingham
- Richard Cummingham to Boyd Cummings
- Brad Cummings to Cortez Cummings
- Cory Cummings to Ericka Cummings
- Erik Cummings to Jack Cummings
- Jackie Cummings to Kimberley Cummings
- Kimberly Cummings to Marissa Cummings
- Marjo Cummings to Pennie Cummings
- Penny Cummings to Staci Cummings
- Stacie Cummings to Yvonne Cummings
- Zach Cummings to Darrin Cummins
- Darryl Cummins to Jodie Cummins
- Jody Cummins to Ora Cummins
- Orison Cummins to Ann Cummiskey
- Barbara Cummiskey to Lisa Cun
- Mui Cun to Alex Cundiff
- Alexis Cundiff to Jordan Cundiff
- Joseph Cundiff to Willie Cundiff
- Wilma Cundiff to Stephen Cuneo
- Steven Cuneo to Gary Cunha
- George Cunha to Virginia Cunha
- Vivian Cunha to Arthur Cunnien
- Michael Cunnien to Michael Cunning
- Nancy Cunning to Augustus Cunningham
- Aundrea Cunningham to Cash Cunningham
- Cassandra Cunningham to Damian Cunningham
- Damien Cunningham to Eamon Cunningham
- Earl Cunningham to Ger Cunningham
- Gera Cunningham to Jasmine Cunningham
- Jason Cunningham to Kelli Cunningham
- Kellie Cunningham to Liam Cunningham
- Liana Cunningham to Matt Cunningham
- Matthew Cunningham to Omar Cunningham
- Omer Cunningham to Roxa Cunningham
- Roxann Cunningham to Tam Cunningham
- Tama Cunningham to Walter Cunningham
- Walton Cunningham to James Cuoco
- Jennifer Cuoco to Luong Cuong
- Luu Cuong to Johnnie Cupit
- Joseph Cupit to Chester Cupp
- Chris Cupp to Louis Cupp
- Louise Cupp to Barbara Cupples
- Barry Cupples to Mary Cupps
- Matthew Cupps to Alexis Curbelo
- Alfredo Curbelo to Anna Curci
- Anthony Curci to John Curcio
- Jonathan Curcio to Daniel Curd
- Danny Curd to Juan Cure
- Justin Cure to Clara Cureton
- Clarence Cureton to Roland Cureton
- Ronald Cureton to Carol Curiale
- Charles Curiale to Gabriela Curiel
- Genaro Curiel to Rodrigo Curiel
- Rogelio Curiel to Clarence Curl
- Claudia Curl to Regina Curl
- Richard Curl to Kathy Curlee
- Kay Curlee to Joseph Curlett
- Kathryn Curlett to Florence Curley
- Frances Curley to Minnie Curley
- Mitchell Curley to Dorothy Curling
- James Curling to Jeffrey Curnutt
- Jennifer Curnutt to Becky Curran
- Belinda Curran to Gayle Curran
- Geneva Curran to Madison Curran
- Maggie Curran to Thomas Curran
- Thos Curran to Stephen Curren
- Steve Curren to Chad Current
- Charles Current to Stephen Curreri
- Steven Curreri to Joseph Currid
- Michael Currid to Desiree Currie