Origin of the name JOS.
Etymology of the
Meaning of the baby name JOS.
short form of Joseph (q.v.),
and its variant forms, meaning "addition" or "he will add."
Usage: Belgium, Flanders, Holland.
Jos Hooiveld, a Dutch football
player. Jozeph Johannes Gerardus Marinus ("Jos") Lansink,
a Dutch equestrian. (Wiki)