OBI-OBR
- Anthony Obi
- Augustine Obi
- Chibueze Sunday Obi
- Chikwelu Lawrence Obi
- Emman C. Obi
- Emman C. Obi
- Evans Obi
- Francis Obi
- Jide Obi
- Joel Obi
- Keiichiro Obi
- John Obi Mikel
- Nobuko Obi
- Onyeabo OBI
- Peter Obi
- Robert Toshio Obi
- Timothy Uzochukwu Obi
- Yukimasa Obi
- Zacheus Chukwukaelo Obi
- Lenient Obia
- Godfrey Ogbonna Obiaga
- Chinonye Obiagwu
- Andrew Obiahuba
- Anthony Obiajulu
- Daniel Nnazor Obiajulu
- Heidi L. Obiajulu
- Amarachi Obiajunwa
- John R. OBIALA
- Raphael Uzodinma Obiala
- Jerry Obiang
- Willie Obiano
- Anthonia Ego Obichere
- Genadiy OBICHKIN
- Amedeo Obici
- Thomas Obicini
- Chinedu Ignatius Obidiegwu
- Anne M. Obidinski
- Damon D. Obie
- Iris Cushman Obie
- Stephen J. Obie
- Emmanuel Nwanonye Obiechina
- Leo G. O'Biecunas Jr.
- Vicky Macleroy Obied
- Esam Ali Obiedat
- Paul Obiefule
- Albert Obiefuna
- Dr. Gabriel Obiefuna
- Gilbert Chike Obiefuna
- Andreas Obieglo
- Kingsley Obiekwu
- Don Micheal O'Bier
- Raymond Chukwugozie Obieri
- Mercy Obiero
- Marivi Obieta
- Loveline Obiji
- Jonathan Obika
- Masanobu Obika
- Satoshi Obika
- Keiji Obiki
- Janis J. O. Biksa
- Michael Obiku
- Daniel Oragegbuna Nnamdi Obikwelu
- Ayo Obileye
- Romano Obilinovic
- Jack O'Billovich
- S.G. Obimpeh
- Jeremy Obin
- Philomé OBIN
- Jonatas Obina
- Joseph Nwabueze Obinaju
- Kenichi Obinata
- Kuniko Obinata
- lchiji Obinata
- Masuo Obinata
- Anthony Obinna
- Okore Elendu Obinna
- Eduardo Obino Cirne Lima
- Salvador César OBINO
- Evaristus Otatade Obinyan
- George Ndu Obioha
- Theresa Ebere Obioha
- José Alfredo OBIOLS G.
- Raimon Obiols
- Anoure Obiora
- Arinze Obiora
- Chris Sunny Obiora
- Emmanuel Chuma Obiora
- Leslye Obiora
- Michael Obiora
- Nwankwo Obiora
- Uchenna O'Brien Obiora
- Geoffrey Okechukwu Obiorah
- Ikechukwu Obiorah
- Jacob Obiorah
- James Obiorah
- Ndubisi Obiorah
- Christian Obiozor
- Cyril Obiozor
- George Achulike Obiozor
- Williams Emeka Obiozor
- Paul Barrett Luty Obis
- Ayodele Obisanya
- Olusola Olufummilayo Obisanya
- Pascal Obispo
- Wirfin Obispo
- Saint Obitius
- Ernest Obitre Gama
- Catherine A. Obits
- Kunio Obitsu
- Gabor Obitz
- Sergei Obivalin
- Ozii Obiyo
- Aleksandrs Obizajevs
- Ikemefuna George Obizulike
- Obizzo Obizzo III d'Este Marquis of Ferrara
- Natalie Obkircher
- Robert M. Oblachinski
- Alexander Golden Oblad
- Michael W. Obladen
- Branko Oblak
- Frank Anthony Oblak
- January Oblak
- John Byron Oblak
- Majda OBLAK
- Marijan Oblak
- Andrei Oblakov
- Charles P. Oblander
- Dennis Keith Oblander
- Kristina Oblasova
- Geoffry W. Oblath
- Steven Bartley Oblath
- Valerie Oblath
- Marian Oblea
- Mario G. Obledo
- Carole O'Blenes
- Brian K. O'Bleness
- David O'Blenis
- R.E. O'Blenis
- M. Kathleen O'Blennis
- Elizabeth A. Obler
- Geri Obler
- Friedrich Obleser
- Halyna Obleshchuk
- Bert Michael Obleski
- Bernard I. Obletz
- Ross Patterson Obley
- Sergey Viktorovich Oblezin
- Rainer Obliers
- Oscar Obligacion
- Carlos OBLIGADO
- ALBERTO OBLIGADO NAZAR
- Pedro Miguel OBLIGADO
- Carlo A. Obligato
- Mary Frances Obligato
- Alexander Oblinger
- Helmut Oblinger
- Hermann Oblinger
- Josephine Kneidl Harrington Oblinger
- Nancy Lee Oblinger
- Ronald Lee Oblinger
- Violetta Oblinger-Peters
- Juan Oblitas
- Robert Paul O'Block
- Victor J. O'Block
- Alexandra Oblogina
- Krzysztof Obloj
- Tadeusz Obloj
- David Anthony Oblon
- Michael A. Oblon
- Norman F. Oblon
- Miroslaw Oblonski
- Elena Oblova
- Joyce Lockwood Oblow
- Edward Joseph Obloy
- Leonard Gerard Obloy
- Linda Nell Obman
- Aleksej Obmochaev
- Nataliya Obmochaeva
- Reynaldo Zaide Obnamia
- Victor Peter Obninsky
- Sergei Obnorskii
- Sergey OBNORSKIY
- Sergey OBNORSKY
- Yurii Victorovich Obnosov
- Takeo Obo
- Barry G. Obod
- Ramon R. Obod
- Anthony Obodai
- Efe Obode
- Stan Obodiac
- Christian Obodo
- Godwin Chijioke Obodo
- Raisa Obodovskaya
- Oleksandr Grigorovych Obodovskyy
- Janusz Obodowski
- Valery Obodzinsky
- Annalisa Oboe
- Roberto Oboe
- Roberto Oboe
- Roberto Oboe
- Madalina Maria Obogeanu
- Ganiyu Oboh
- Peter Oboh
- Samuel Oboh
- Solomon Oboh
- Sunday Oboh
- Francisca Emiede Oboh-Ikuenobe
- Maka Obolashvili
- Taylor H. Obold
- Georgiy OBOLDUYEV
- Iuliia Leonidovna, Princess Obolenskaia
- Maria Yurievna Obolenskaya
- Ivan Obolenski
- Dmitrii Dmitrievich, Sir Obolenskii
- Leonid Obolenskii
- Mikhail Vasil’evich, Prince Obolenskii
- Sergei Sergeevich, Prince Obolenskii
- Vladimir Obolenskii
- Alexander Obolensky
- Alexis Obolensky
- Andrei Nikolaevich Obolensky
- Andrei Nikolayevich Obolensky
- Ariane Sophie Obolensky
- Dimitri Obolensky
- Georges Obolensky
- Ivan Obolensky
- Leonid Obolensky
- Lev Obolensky
- Marilyn Wall Obolensky
- Michael N. Obolensky
- Nicholas Obolensky
- Serge Obolensky
- Сергеи Obolensky
- Irina Romanovna Obolentseva
- Suzanne Oboler
- Vladimir Arkadievich Obolkin
- Oleksandr Obolonchyk
- Nikolay Obolskiy
- Alexander Eduard Obolsky
- Benjamin Obomanu
- Alanis Obomsawin
- Torao Obonai
- Ildefonso Obama Obono
- Annick Obonsawin
- Charles Owuora Obonyo
- Barbro Oborg
- Lev OBORIN
- Sergei Oborin
- V. OBORIN
- Charles Stephen Oborn
- Jolene Carole Oborn
- Jus Oborn
- Kathleen Marie Oborn
- Brad Oborne
- Geraldine Alberta O'Borne
- Rod Oborne
- Miroslav Oborník
- Victor Oyenkekaibe Oboro
- Arnold Oborotov
- Donald Oborowsky
- Donald John Oborowsky
- Mikolaj Oborski
- Ryszard Oborski
- Tomasz Oborski
- Blessing Oborududu
- Florence Oboshie
- Ephraim Obot
- Patrick Enefiok Obot
- Apollo Obote
- Apollo Obote
- Apollo Milton OBOTE
- Milton Obote
- Miria Obote
- Alexei OBOUKHOV
- Francis M. O'Boy
- Barbara O'Boyle
- Beth Ann O'Boyle
- Bill O'Boyle
- Eileen O'Boyle Bitetto
- Bryan R. O'Boyle
- Cardinal Patrick Aloysius O'Boyle
- Ciaran O'Boyle
- Ciarán Augustine O'Boyle
- Conor O'Boyle
- David M. O'Boyle
- DENNIS O’BOYLE
- Dennis B. O'Boyle
- Emmett O'Boyle
- Francis Joseph O’Boyle
- George O'Boyle
- Harry O'Boyle
- Hugh O'Boyle
- Ian O'Boyle
- JAMES O’BOYLE
- James Bernard O'Boyle
- James D. O'Boyle
- James G. O'Boyle
- John O'Boyle
- JOHN O’BOYLE
- John O'Boyle
- John M. O'Boyle
- Charles V. O'Boyle Jr.
- John J. O'Boyle Jr.
- Louis John O'Boyle
- Maeve O'Boyle
- Mark E. O'Boyle
- Mary O'Boyle
- MARY O’BOYLE
- Mary F. O'Boyle
- Maureen O'Boyle
- Maureen O'Boyle
- Michael O'Boyle
- Michael William O'Boyle
- Patrick John O'Boyle
- R. Michael O'Boyle
- Robert L. O'Boyle
- Robert M. O'Boyle
- Sean O'Boyle
- Shane Brendan O'Boyle
- Sheila Mary O'Boyle
- Thomas O'Boyle
- Tom O'Boyle
- Tom O'Boyle
- Tom O'Boyle
- Tommy O'Boyle
- Joanne Marie Oboyski-Battelene
- Margaret Obozian Gairo
- Dmitry Oboznenko
- Igor Leonid Oboznenko
- Maksim Obozny
- Ruairi O BRADAIGH
- Gregorio T. Obrador
- Jacqueline Obradors
- Slobodan Obradov
- Zlatomir Obradov
- Aca Obradovic
- Biljana Dragoslav Obradovic
- Goran Obradovic
- Goran Obradovic
- Ivan Obradovic
- Lazar Obradovic
- Marko Obradovic
- Matko Obradovic
- Milan Obradovic
- Milos Obradovic
- Milovan Obradovic
- Nemanja Obradovic
- Paulo Obradovic