Names Abel Oa through Eric Oakerson
- Abel Oa-Francisco Oa
- Frank Oa-Murillo Oa
- Myong Oa-James Oaa
- Jeanne Oaa-Elizabeth Oaalvaro
- Anastacia Oaalvidrez-Eleanor Oaaron
- Elton Oaaron-Edgar Oaasness
- Peter Oaasness-Jacob Oabadi
- Simin Oabadi-Kofi Oabanquah
- Geraldine Oabanski-Lawrence Oabate
- Linda Oabate-Richard Oabbe
- Virginia Oabbe-Francis Oabbott
- Frank Oabbott-Gianni Oabbs
- William Oabbs-Ismail Oabdellahe
- Hemine Oabdellahi-Mary Oabdulah
- Umoja Oabdulahad-Abraham Oabe
- Adebola Oabe-Fapohunda Oabejohnson
- Marianne Oabek-Manuel Oabeljamilano
- Jennie Oabelko-Jack Oaber
- Marianne Oaber-Tokue Oabernathy
- Tommy Oabernathy-Cathleen Oabicki
- Adel Oabid-Olukemi Oabiodun
- Oluwadamilo Oabiodun-Lyle Oable
- Margaret Oable-Syreeta Oabney
- Terrence Oabney-Jane Oabonna
- Michael Oabonna-Robin Oabornegraybill
- Richard Oaborns-Christina Oabraham
- Chunakara Oabraham-Donna Oabrahamson
- Edward Oabrahamson-Mae Oabrams
- Marc Oabrams-Rosemary Oabrego
- Sandra Oabrego-Luzvimindo Oabriam
- Manuel Oabriam-Darl Oabsher
- Darlene Oabsher-Syarliza Oabubakar
- Yunusa Oabubakar-Luis Oabundez
- Lydia Oabundez-Ibrahim Oabuteij
- Khitam Oabuthalla-Kimberly Oacanas
- Joseph Oacanay-Charles Oace
- Charlie Oace-Amanda Oaces
- Bianca Oaces-Manuel Oacevedo
- Marcelin Oacevedo-Cornelius Oacey
- Courtney Oacey-Sylvia Oach
- Tandy Oach-Carolyn Oacheampong
- Cecilia Oacheampong-Derek Oacheson
- Frank Oacheson-Daniel Oachoa
- Dominic Oachoa-Brianna Oachs
- Brianne Oachs-Justin Oachs
- Kaden Oachs-Sue Oachs
- Sunny Oachs-Brandon Oack
- Cameron Oack-La Oackerman
- Latisha Oackerman-James Oackley
- Jamie Oackley-Luis Oacmpo
- Ruby Oacmpo-Alejandro Oacosta
- Alex Oacosta-Gredys Oacosta
- Guadalupe Oacosta-Patricia Oacosta
- Patsy Oacosta-Mark Oacrawford
- Carlton Oacrayton-Michael Oaculana
- Elga Oacum-Helena Oaczykowski
- Aashish Oad-Rishi Oad
- Rishyll Oad-Glenn Oadair
- Gloria Oadair-Mary Oadamaitis
- Halyna Oadamchak-Carisle Oadamison
- Kara Oadamites-Camilla Oadams
- Candace Oadams-Earlene Oadams
- Early Oadams-James Oadams
- Jamie Oadams-Liliane Oadams
- Lillian Oadams-Pamlico Oadams
- Panton Oadams-Tally Oadams
- Tammy Oadams-Steven Oadamson
- Susan Oadamson-Oleksandr Oadchuk
- Lynne Oadclifton-Isaiah Oaddams
- Ivette Oaddams-Burch Oaddington
- Burchard Oaddington-Deloris Oaddo
- Dorothea Oaddo-Gregory Oade
- Isabella Oade-Eunice Oadebayo
- Fatai Oadebayo-Abimbola Oadebowale
- Ademola Oadebowale-Kamilah Oadediran
- Kevin Oadediran-Abolade Oadegbite
- Adeyemi Oadegbite-Adiaun Oadejoke
- Adigun Oadejoke-Emmanuel Oadekunle
- Florence Oadekunle-Charles Oadeleye
- Dele Oadeleye-Jimmy Oademoji
- Oluwatoyin Oademokun-Bolajoko Oadeniji
- Charles Oadeniji-Adeleke Oadenusi
- Adelexe Oadenusi-Mudrakatu Oadepoju
- Olukunle Oadepoju-Angela Oaderson
- Rafeeat Oaderugbo-Nicole Oades
- Nikki Oades-Tokunbo Oadeshiyan
- Olufemi Oadeshola-Titilayo Oadetu
- Emmanuel Oadetual-Adeyinka Oadewunmi
- Aminot Oadewunmi-Adewunmi Oadeyemo
- Adeyemi Oadeyemo-Christine Oadgett
- Cynthia Oadgett-Ladi Oadigun
- Matthew Oadigun-Eduardo Oadir
- Farid Oadir-Yaa Oadjeidanso
- Yaw Oadjeikoranteng-Jesse Oadkins
- Jessie Oadkins-Wilton Oadkins
- Wm Oadkins-Paul Oadley
- Rachel Oadley-Chae Oadomiak
- Garabed Oadomian-Adewale Oadri
- Afzaal Oadri-William Oadshoorn
- Edwin Oadside-Frederick Oadula
- Michelle Oaduloju-Brianna Oadyer
- Phillip Oadygilliam-Young Oaelee
- Stephanie Oaelen-Leambra Oaetis
- Angela Oaetman-Filipinas Oafalla
- Florencio Oafalla-Monica Oaffney
- Paul Oaffney-Patrick Oafolabi
- Rahim Oafolabi-Esther Oafriyie
- Francis Oafriyie-Holly Oag
- Hugh Oag-John Oagan
- Johnny Oagan-William Oagas
- Nichole Oagascino-Sunday Oagbedare
- Titilola Oagbedavies-Isiaka Oagboola
- Job Oagboola-Domique Oagee
- Elmer Oagee-Linda Oages
- Lonnie Oages-William Oaghton
- Ahmad Oagi-Tammi Oagle
- Tomika Oagle-Julius Oagner
- Kathleen Oagner-David Oagood
- Dianne Oagood-Suparat Oagpatanavolik
- Adolfo Oagra-Francisco Oaguado
- Luciano Oaguado-Rogelio Oagudo
- Nina Oagudoha-Paula Oaguiire
- Martha Oaguije-Dagoberto Oaguilar
- Dani Oaguilar-Jean Oaguilar
- Jeriel Oaguilar-Ramiro Oaguilar
- Ramon Oaguilar-Eddie Oaguilera
- Eduardo Oaguilera-Arnold Oaguinada
- Arthur Oaguinaga-Evangeline Oaguirre
- Evelia Oaguirre-Patricia Oaguirre
- Paul Oaguirre-Elizabeth Oagunniyi
- Emanuel Oagunobi-Thomas Oagwood
- Felix Oagwu-Patricia Oagyeman
- Philip Oagyeman-Miyong Oah
- Myonet Oah-Evelyn Oaharon
- Hisham Oaharon-Vivian Oahern
- William Oahern-Geraldine Oahkley
- Glenn Oahkley-Lynn Oahley
- Mark Oahley-Jamil Oahmad
- Mahmoud Oahmad-Lita Oahmed
- Magdi Oahmed-Jennifer Oahn
- Jeongock Oahn-Timote Oaho
- Todd Oaho-Richard Oahrendt
- Verdeen Oahrendt-Juuhi Oahuja
- Juliana Oahukanna-Le Oai
- Li Oai-Li Oaichi
- Carri Oaichklein-Marco Oaiello
- Maria Oaiello-Anne Oaihimire
- Annette Oaihimire-Farrah Oaikhiena
- Obehi Oaikhinan-Ricardo Oaim
- Raul Oaimacana-George Oainger
- Harold Oainger-Carol Oairasian
- Douglas Oairbanks-Donny Oaisida
- Helen Oaisien-Eroehi Oaiya
- Eva Oaiya-Brian Oaizs
- Darshna Oaj-Reyna Oajaca
- Roland Oajaca-Mark Oajan
- Miloslav Oajan-Folashade Oajayi
- Friday Oajayi-Alice Oaje
- Babajibe Oaje-John Oajiboye
- Linda Oajiboye-Elethia Oajose
- Frances Oajose-Allison Oak
- Almeda Oak-Beavertooth Oak
- Bechtel Oak-Cente Oak
- Center Oak-Cundiff Oak
- Curgent Oak-Eb Oak
- Echo Oak-Geum Oak
- Gibson Oak-Ilsung Oak
- Im Oak-Josephine Oak
- Josephing Oak-Lanes Oak
- Lanny Oak-Malika Oak
- Malin Oak-Myoung Oak
- Myra Oak-Phil Oak
- Phili Oak-Rohan Oak
- Rohini Oak-Shelby Oak
- Sheldon Oak-Sukrut Oak
- Sukwoon Oak-Victona Oak
- Victor Oak-Masayuki Oakabe
- Chucks Oakabike-Cornelis Oakam
- Drudy Oakam-Victor Oakande
- Victoria Oakande-Issa Oakar
- James Oakar-Wendy Oakason
- Keri Oakasone-Creamer Oakboro
- First Oakboro-Stanley Oakcrum
- Tamara Oakcrum-Adam Oakden
- Al Oakden-Gina Oakden
- Glenda Oakden-Miran Oakden
- Mitchell Oakden-Connie Oakdew
- Paul Oakdew-Emily Oake
- Emmanuel Oake-Onome Oake
- Pam Oake-Sable Oakee
- Timothy Oakee-Eva Oakeley
- Evelyn Oakeley-Alissa Oakely
- Allison Oakely-Jeramie Oakely
- Jerry Oakely-Selina Oakely
- Sengchan Oakely-Evelyn Oaken
- Frances Oaken-Adrian Oakens
- Andria Oakens-Lonnie Oaker
- Louise Oaker-Oscar Oakerlund
- Ray Oakerlund-Julie Oakers
- Justin Oakers-Eric Oakerson