MallowbyNames

Onyx

όνυξAHN-iks · From the name of the black gemstone.

2025 rank (boys)
#365
Babies named in 2025
881
Peak popularity
2023
2025 frequency
1 in 1,939 boys
Usually for
Boys
Trend
Rising since 1990

Rising since 1990, #365 for boys today.

Popularity of Onyx since 1918

Babies named Onyx per year in U.S. Social Security records.

3607191.1k192019602000Most births 2023GirlsBoys
GirlsBoys
Data table (by decade)
DecadeGirlsBoys
1910s50
1920s00
1930s00
1940s00
1950s00
1960s00
1970s00
1980s130
1990s12495
2000s158280
2010s4871,431
2020s9965,043

Meaning & origin

Onyx is a modern gemstone name that first entered U.S. birth records in 1990. It has since climbed steadily in popularity, reaching its peak rank so far in 2023 at 365th. As of 2025, about 1 in 1,939 newborns receive this name, reflecting its rising trajectory over the past three decades. Onyx is most popular in North Dakota, Nevada, and West Virginia, showing a broad appeal across diverse regions. Its sound is bold and straightforward, fitting a contemporary trend of mineral and nature-inspired names that work for any gender, though it skews slightly more toward boys. The name's etymology ties back to the Greek word for 'claw,' referencing the stone's layered appearance, but in modern usage it stands on its own as a sleek, distinctive choice.

Onyx is a gemstone name taken directly from the English word for a black variety of chalcedony. The word derives from Latin onyx and Greek ónyx, meaning 'claw' or 'fingernail,' in reference to the stone's banded appearance resembling a fingernail. As a given name, Onyx emerged in the late 20th century, first appearing on U.S. records in 1990. It belongs to a modern trend of gem and mineral names used for both boys and girls.

Where Onyx is most popular

Births per 100,000 boys by state. Press play or drag the slider to watch it move across the decades. The lightest shade means too few recorded births.

2020s
Fewermore per 100k boystoo few births

Onyx” around the world

Where Onyx lands in the latest official birth statistics abroad, matched to the U.S. spelling.

  • New Zealand

    14

    babies in 2025

  • Quebec

    6

    babies in 2025

Sources: NZ Dept of Internal Affairs (New Zealand) · Retraite Québec (Quebec).

Sibling names for Onyx

Names that share Onyx's style, for a brother or sister.

A parent animal hugging its little one, the personalized name page

O is for Onyx, our favorite little boy.

O is for Onyx…”

In a Mallowby alphabet book, Onyx's letter becomes Onyx's page: hand-illustrated, printed hardcover or paperback, made just for them.

Make Onyx's book

Books for siblings or grandkids? The second book is 15% off.

Questions parents ask

What does the name Onyx mean?
Onyx means the black gemstone, derived from a Greek word for 'claw' or 'fingernail.'
How popular is the name Onyx?
As of 2025, Onyx ranked 365th in the U.S., with about 1 in 1,939 newborns given the name. Its popularity has been rising since it first appeared in 1990, peaking in 2023.
Is Onyx a boy or girl name?
Onyx is used for both boys and girls but is more common for boys. Its usage has risen steadily since the 1990s, particularly in recent years.