Onyx — Name Meaning, Origin & Popularity

Onyx is a unisex name of Greek origin, meaning "the black gemstone".

Style & feel. With nature and word on its style card, Onyx sits comfortably in the modern naming landscape — familiar enough that nobody misreads it, distinctive enough that your child won't share it with three classmates. At 2 syllables, it flows across most middle-name combinations and survives every life stage from playground to résumé.

Pairing ideas. Onyx pairs naturally with one- and two-syllable middles (Indigo, Ember share its sound-world). If you like Onyx, you'll probably also love Indigo, Ember, Onyx — same era, same energy, same bone structure.