Follower of Dionysus or of the people
Demone is likely a modern variant or phonetic spelling of the Greek name Damon or the French name Demon. It is often associated with the Greek 'Damon', meaning 'to tame', or 'Demophon', meaning 'voice of the people'. In some contexts, it is used as a creative variant of names beginning with the 'De-' prefix.
Less common today
Demone isn't in the latest US Top 1000. It last peaked at #4,294 in 1990.
Professional American football player
US births per 5-year period, 1990βpresent (SSA data).