Atom

♂ Boy

Pronounced AT-om /ˈæt.əm/High

Meaning: From Greek atomos meaning 'indivisible', from a- (not) + tomos (cut), referring to the smallest particle of matter once thought impossible to divide; used as a given name for its scientific and futuristic resonanceHigh

In 30 seconds: Atom is a modern given name drawn from the Greek atomos meaning indivisible, the basis for the scientific concept of the atom. Bold and minimalist, it appeals to parents with scientific interests or a taste for unusual, strong-concept names.

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Origin HighGreek

MeaningFrom Greek atomos meaning 'indivisible', from a- (not) + tomos (cut), referring to the smallest particle of matter once thought impossible to divide; used as a given name for its scientific and futuristic resonance

U.S. rank (2025)#3384 ↘ Falling

2025 U.S. births34 boys (0.00% of U.S. boys)

Peak year2017

Total births (all-time)≈ 1,057

Popularity in the U.S. · SSA data

U.S. births per year (Social Security Administration, 1880–present). Pink marker = peak year.

SSA data updated May 2026. How we source & verify this data.

History & Origin

The word atom comes from ancient Greek atomos (ἄτομος), meaning 'indivisible' or 'that which cannot be cut'. Greek philosopher Democritus coined it around 400 BC to describe his theory of matter's fundamental building blocks. The concept shaped the entire trajectory of chemistry and physics from Dalton's atomic theory (1803) onward.

As a given name, Atom is rare but appears in various cultures — in Japan as Atom (アトム), it is the name of the iconic manga character Astro Boy (Tetsuwan Atom), created by Osamu Tezuka in 1952. In the Western naming tradition it is an unconventional choice with a strong conceptual identity.

Did you know? The word atom was coined by ancient Greek philosopher Democritus (c. 460–370 BC), who theorized that all matter was composed of infinitely small, indivisible particles he called atomoi. He was essentially right — more than 2,000 years before modern physics confirmed it.

Overall data confidence 95%

Oxford English Dictionary — Atom — Etymology from Greek atomos (indivisible)Tezuka Osamu — Tetsuwan Atom (1952) — Famous fictional bearer

Variations

AdamAtomicAdamm

Nicknames

AtTom

Famous Bearers

★Atom Egoyan (1960-)
Armenian-Canadian filmmaker known for The Sweet Hereafter

If you like Atom…

Ace— fellow one-or-two syllable bold boys name with modern energy

Axel— shares the punchy A-X sound and modern edgy character

Atlas— fellow short Greek-origin name used in modern naming with bold conceptual meaning

Adam— shares similar sound and spelling; biblical counterpart to Atom's scientific boldness

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Frequently Asked

What does the name Atom mean?

Atom means indivisible in Greek, referring to the smallest particle of matter. It's a bold scientific name.

How do you pronounce Atom?

It is said AT-om, with two syllables and stress on the first, exactly like the word atom.

Is Atom a boy or girl name?

Atom is used as a boy's name.

How popular is Atom?

Atom is very rare as a given name in the West, though it is well known in Japan as the name of Astro Boy.