Dennis is a ♂ boy name.
Dennis is originally a Scottish and US-American name and derived from the Greek God Dionysos / Διόνυσος, the God of wine, fertility or festivity.
Dennis means “dedicated to the God Dionysos“ or “follower of Dionysos“ and “of Dionysus”.
Based on the frequency of positive ratings, we can analyze how popular names are in different countries. The name Dennis is currently ranked #3454 on the name leaderboard.
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