Osteen is of English origin, derived from the Old English word 'ost', meaning 'east'. It was originally a nickname given to someone who came from the east, or perhaps someone who faced east when standing. The name has been historically associated with the East Anglian region of England. Over time, Osteen has become a surname, though it can also be used as a given name.
"Osteen is quite rare, with only 11 babies named thus far."