Arthur, William (1857) An Etymological Dictionary of Family and Christian Names. New York: Sheldon, Blakeman. Public Domain.
ORMSBY
As described in historical dictionaries
An Etymological Dictionary of Family and Christian Names (1857)
From orme, an elm, and by, a town; a name of a place surrounded by elms.
Surname type: Location or geographical feature
Origin: English
Region of origin: British Isles
Country of origin: England
Religion of origin: Christian
Language of origin: English