Onyx
Gender: Mostly Boy
Meaning: Black gemstone or claw
Origin: Greek
Popularity: Ranked #365 in 2025 with 881 babies born.
History: Onyx comes from the Greek 'onyx,' meaning claw or fingernail, referring to the banded black and white gemstone whose translucency was compared to a human nail. The stone has been prized since antiquity in jewelry and cameo art. As a given name, Onyx is a modern choice associated with gemstone names and the color black, appealing to parents seeking bold, unconventional names.
Name length: 4 letters
How common is Onyx? About 1 in 3,213 babies born in 2025 were named Onyx, or roughly 2.8 per day in the United States.
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Frequently asked about Onyx
What does the name Onyx mean?
Onyx means “Black gemstone or claw” from Greek roots.
What is the origin of the name Onyx?
Onyx has Greek origin. The traditional meaning is “Black gemstone or claw”.
How popular is Onyx?
Onyx ranked #365 in 2025 — given to 881 babies that year.
When was Onyx most popular?
Onyx peaked in 2023 with 1,077 babies registered that year.
Is Onyx a boy or girl name?
Onyx is used for both boys and girls. In the records, about 79% of Onyxs are boys and 21% are girls.
Is the name Onyx rising or falling in popularity?
Onyx has risen 1385 spots in the rankings over the last 5 years — from #1750 in 2020 to #365 in 2025.
How long has Onyx been recorded?
Onyx appears in birth records across 39 years — from 1918 through 2025.