Mainly U.S.: variant of Darren, associated with the singer Bobby Darin (1936–73), who was originally called Walden Robert Cassotto. He chose the name that he made famous from the list of surnames in a telephone directory.
Italian and Spanish: from the personal name Romano, Latin Romanus, borne by several saints and martyrs. This was originally a byname for someone from Rome or for a Roman citizen, from Roma ‘Rome’. See also Roman.