MallowbyNames

Obsidian

ob-SID-ee-en · A hard, dark volcanic glass formed by rapid cooling of lava.

2025 rank (boys)
#5,608
Babies named in 2025
16
Peak popularity
2023
2025 frequency
1 in 106,755 boys
Usually for
Boys
Trend
Rising since 2015

Rising since 2015, #5,608 for boys today.

Popularity of Obsidian since 2013

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

713202020Most births 2023Boys
Data table (by decade)
DecadeBoys
2010s34
2020s100

Meaning & origin

Obsidian is a rare, modern name that entered the U.S. baby name charts in 2013, later reaching its peak rank of 5,608 in 2025. It belongs to a growing trend of gemstone and nature-inspired names, but remains uncommon, with roughly 1 in every 106,755 boys receiving the name that year. Its trajectory has been rising since 2015, suggesting increasing but still niche appeal. The name has not yet appeared in top state rankings, reflecting its recent and limited adoption. Obsidian offers a sleek, strong sound that appeals to parents drawn to distinctive, elemental names.

Obsidian is a modern coinage taken directly from the name of the volcanic glass, which itself derives from the Latin 'Obsidianus lapis', a stone named after the Roman explorer Obsius, who supposedly discovered it in Ethiopia. The word entered English in the 17th century and has been adopted as a given name in the 21st century, likely due to its association with strength, sleekness, and the gemstone trend in baby names.

Nicknames & variants

Nicknames: Sid, Obi, Odie

Sibling names for Obsidian

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

Sisters: Luna, Noir, Sage, Ruby, Onyx

Brothers: Onyx, Jasper, Shadow, Coal, Slate

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

O is for Obsidian, our favorite little boy.

O is for Obsidian…”

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

Make Obsidian's book

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

Questions parents ask

What does the name Obsidian mean?
Obsidian is the name of a natural volcanic glass, known for its dark, glossy appearance. As a name, it conveys strength and uniqueness.
How popular is the name Obsidian?
Obsidian first appeared in U.S. baby name records in 2013 and ranked 5,608 in 2025, meaning about 1 in every 106,755 baby boys received the name that year.
Is Obsidian a boy's or girl's name?
Obsidian is most often used for boys, though it is considered a unisex name and can be used for any gender.