Im pretty certain its a jewish name
here u go:
REUBEN
Gender: Masculine
Usage: Biblical, Jewish, English
Other Scripts: רְאוּבֵן (Hebrew)
Pronounced: ROO-bən (English)
Means "behold, a son" in Hebrew. In the Old Testament he was the eldest son of Jacob and Leah and the ancestor of one of the twelve tribes of Israel. It has been used as a Christian name in Britain since the Protestant Reformation.
RUBEN
Gender: Masculine
Usage: Scandinavian, Dutch
Pronounced: RUY-bən (Dutch)
Scandinavian and Dutch form of REUBEN
ok i was wrong its also a Christian name