O
Godelieve
Helena
Joannes
Julius Jozef
Petrus Vitalis
Obreno
Eugenie
Mathilde-Sophia
Stephanie
Obyn
Gustaaf Emiel
Gustaaf-Emiel
Ockerman
Christiane
Emma
Jozef
Maria-Magdalena
Ocket
Hortense-Maria
Octave
Joanna
Raymond Ferdinand
Sebastien
Ocula
Hilda
Odaert
Petronella
Odevaere
Jules Denis Joseph
Oestlandt
Euphrasie-Romania
Oeyen
Constant Maria
Ferdinand Gustaaf Joanna
Franciscus
Maria Albertina Julia
Olbrechts
Alphonsine Philomena
Anna Maria
Anna Maria
Catharina
Catharina Dorothea
Catharina Ludovica
Eduard
Edward
Emiel
Emiel Filip
Frans
Frans-Antoon
Hendrik
Herman
Jaak
Jan
Jan
Jan
Jan Alfons
Jan Baptist
Jan Frans
Jan Jozef
Jean (Jean van Julie)
Jeanette
Jeannine
Joanna
Joanna
Joanna
Joanna Catharina
Joanna Catharina
Joanna Ludovica
Josephina
Josephina Joanna
Jozef
Jozef
Jozef
Jozef
Karel Joseph
Leopold
Louis
Louisa
Louise Rachel
Maria Theresia
Maria-Ludovica
Marie
Marie
Paulina
Paulina
Petronella
Petronella Maria
Petrus
Petrus Frans
Petrus-Josephus
Pieter
Pieter Frans
Robert
Victor
Oldijck
Maria Elisabeth
Olemans
Maria-Florentina
Olevier
Theofiel
Olieslagers
Gerardus
Olivier
Albert-Edmond
Palmyre-Maria
Ollevier
Camiel-Marcel
Ollivier
Jules
Louise
Ombelets
Amelia-Catharina
Jozef
Omblets
Antoinette
Onclin
Maria Margaretha
Maria-Anna
Ongena
Alois
Karel Lodewijk
Ongenae
Maria-Teresia
Onghena
Henrica Ludovica
René
Onsia
Maria Margareta
Onsiau
Joanna Maria Catharina
Ooghe
Camille
Oomen
Cornelis Wilhelmus
Ooms
Antoon Edmond
Cornelius
Jozef
Jozef
Karel
Oorlynck
Georgette
Germaine
Oosterlinck
Abdon Gaston Hilaire
Flavie
Karel
Louis Karel
Oosters
Marie-Leonie
Op 't Eynde
Urbain Henri Michel Remy
Op 't Roodt
Joanna Catharina
Op de Beeck
Aloysius
Angelina Ludwina Celina
Anna Catharina
Bertha Maria
Clara Theresia Maria Medardus
Delphine-Marie-Josèphe
Elsa Florentina
Franciscus Florimondus
Frans Albrecht
Guillielmus
Hendrika
Isabella Sylvia
Jan Lodewijk
Joanna Victoria
Joanna Victoria
Jozef
Jozef-Edmond
Jules Henri
Ludo
Ludovicus Franciscus
Maria
Maria Adelia
Maria Ludovica
Maria Theresia
Medard
Rosalia
Sidonie
Willem
Opalfvens
Palmyre-Fidelus-Jan-Hermenie
Opalvens
Jan-Baptist
Opdebeeck
Frans
Jan Alfons
Joannes Augustinus
Maria Antonia
Maria Louisa
Ophalffens
Katharina
Ophals
Gustaaf
Léonard
Rosa
Opligtenberg
Vital
Oplinus
Alice-Maria
Joseph
Opsomer
Barbara-Theresia
Joris
Opstaele
August-Serafien
Opstal
Marcelin
Optiels
Maria Virginia
Orban
Cécile
Joseph
Lucie Thérèse
Orban de Xivry
Auguste
Isabelle-Marie
Léonie
Marthe
Oreel
Henri
Orgaer
Gustaaf-Cyrille
Orincx
Petrus Josephus
Orins
Frans
Jean-Eugeen
Orlandini
Philippus Franciscus Xaverius
Orlent
Maria Louisa
Ory
Marie
Osier
Nicasius
Osstyn
Alfons
Ost
Florentia
Julien
Ostijn
Alberic Jozef
Suzanna Barbara
Yvonne
Ostyn
Irma-Maria
Julia
Karel-Baziel-Boudewijn
Leonie
Maria
Maria-Louisa
Osy
Joséphine Marie Isabelle (barones)
Ots
Marie
Otten
Jozef Hendrik Louis
Lambertus-Deodatus
Otto
Karel
Otto de Mentock
Charles Marie Ghislain
Ferdinand Marie Ghislain
Ottoy
Pelagia
Oudaer
Isidoor
Ouderits
Maria
Ovaere
Cyriel Remi
Overath
Hubertine Pauline Catherine
Pascal
Oversteyns
Martha
Overstraete
Melanie
Oyen
Maria Theresia