See also: Appendix:Variations of "or" Etymology Borrowed from Cantonese 柯 (o1) or from Hebrew אור ('ór). This surname is mostly found in Hong Kong. Proper noun Or (plural Ors) A surname. Statistics According to the 2010 United States Census, Or is the 35671st most common surname in the United States, belonging to 630 individuals. Or is most common among Asian/Pacific Islander (70.63%) and White (16.35%) individuals. Further reading Hanks, Patrick, editor (2003), “Or”, in Dictionary of American Family Names, volume 3, New York City: Oxford University Press, →ISBN. Anagrams r/o, Ro, R&O, RO Noun Or Alternative spelling of Ohr