Oostenrijk, Grietje Pieters
Oppenheim, Sara Juda (birth ± 1788 Appingedam - died 24 Mar 1825 Appingedam)
Ossedrijver, Johanna (birth 12 Jun 1916 Amsterdam - died 19 Dec 1990 Tel Aviv Isr.)
Ossedrijver, Meijer (birth 18 Mar 1880 Amsterdam - died 28 May 1943 Sobibor)
Oude Altink, Karan
Ourhaan, Leentje (birth 15 Jun 1847 Groningen - died 22 Dec 1896 Groningen)
Outs, Ester (birth 23 May 1842 Groningen - died 13 Jan 1919 Grijpskerk)