Onix

Onix is a modern masculine name inspired by the stone onyx, a type of banded chalcedony known for its black color and use in jewelry since ancient times. The name's spelling variation with an 'i' instead of 'y' gives it a contemporary edge while maintaining its connection to the precious stone. In recent years, Onix has gained modest popularity, particularly in Spanish-speaking communities and among parents influenced by unique nature-inspired names. The name received additional recognition through the Pokémon character Onix, a rock-snake creature introduced in the 1990s. With its strong sound, compact structure, and associations with a valuable natural element, Onix appeals to parents seeking a distinctive yet accessible name with subtle strength connotations.

Onix is also given to girls, where it ranks #14482 in the US.

Pronounced AH-niks.

As of October 2026, Onix ranked #4661 for boys and #14482 for girls in US births in 2025 SSA, peaked at #2741 for boys in 1966.