Family History and Genealogy Resources by Surname
Oswald Surname Origin
(Origin Saxon) From hus, a house, and wald, a ruler--a house-ruler or steward; a king of Northumberland.
Source: An Etymological Dictionary of Family and Christian Names With an Essay on their Derivation and Import; Arthur, William, M.A.; New York, NY: Sheldon, Blake, Bleeker & CO., 1857.
Oswald Surname Meaning and Family Facts
There is more to Oswald family history than the origin of your surname:
A Oswald Family History Thought:
What is past is prologue.