Given name & surname

Tom

“twin”

Tom is a variant of Thomas. The original Aramaic byname means “twin.”

Meaning & origin

What it means

Tom is a variant of Thomas. The original Aramaic byname means “twin.”

Explained through its name family

Where it comes from

Tom is a variant of Thomas. Thomas developed from an Aramaic byname and reached wider use through its Greek biblical form.

Explained through its name family

How it developed

In English use, Tom is used as a shortened form of THomas. Tom is a variant of Thomas. The shared background comes through Thomas: The apostle is called Thomas and also Didymus in the New Testament. Didymus reflects the Greek word for “twin,” matching the meaning of the Aramaic byname behind Thomas.

Combines direct and name-family evidence

The story

Published U.S. birth records include this spelling as early as 1880. This is the earliest published observation available here, rather than a date for the name’s origin. Tom is a variant of Thomas. The history of Thomas gives this family its wider story. Thomas was the name of one of Jesus’s twelve apostles, remembered in Christian tradition for his doubts and later reassurance. That story helped establish the name across Christian naming traditions.

Combines direct and name-family evidence

Tom through the years

Babies since 1880
140,370
139,756 boys · 614 girls
Most popular year
1959
5,080 babies
2025
65
#2,206 for boys
2021–25 vs 2016–20
−22%
Easing
01,0002,0003,0004,00018801900192019401960198020002025Highest share 188338
Tom in U.S. Social Security birth records, 1880–2025, per million boys born. Years with fewer than five births for a sex are not published and appear as zero. Use the arrow keys to step through years.

Where it’s given

Most at home inNew York, California, Texas
FewerMore, relative to births Not published
2025 births by state of birth. Tiles are equal-sized so small states stay visible. Highest rates: New York (10), California (8), Texas (6).

By the numbers

In 2025, this name appeared in 65 U.S. birth records for boys, ranking No. 2,206 among boys’ names. Average annual use for boys was 22.2% lower in 2021–2025 than in 2016–2020. Its largest published annual count for boys was 5,068 in 1959. In 2025, New York had the largest reported state-level birth count for boys with this name (10). Published U.S. population figures for this spelling include 118,350 as a first name in 2020; 10,364 as a surname in 2020.

From Social Security birth records and U.S. Census name counts for this exact spelling. Other spellings are counted separately.

Tom’s family of names

In English usage, Tom is a diminutive of Thomas. In English usage, Tom has a later derivative in Tomi. In Portuguese usage, Tom has a conventional naming counterpart in the English form Tony.

Walk Tom’s family in the name graph

TomTombתוםThomasTommyThomAntônioTomisławTomasTonyTommieTomiTamTomaszTommiTomaTommasoTomyTomoThomaTomasoToomasTameTomsTomosTomassoFomaTomásTamásФома湯姆Tomáisín

Inner ring: spellings · middle: nicknames and forms · outer: across languages.

Hover or tab through the constellation to see how each name is related. Bigger dots are names more people in the U.S. share.

Around the world

Tom has relatives in 11 languages.

TokelauanEnglishPolishChineseMāori

19 related names in 11 languages. Point at a dot, or tab to the map and use the arrow keys.

Each dot marks where a language is rooted, not where people with the name live today. Bigger dots hold more names. Dots on the border stand for languages further away. Language locations from Glottolog (CC BY 4.0); map from Natural Earth.

Similar names

If you love Tom, these share its style, era, origin or sound, from outside its own family.

Biblical

Danny

“God is my judge” · “he judged”

57FamiliarEasing

97% boys · 3% girls

Scandinavian · Biblical

Hans

“God is gracious”

44UncommonSteady

>99% boys

Literary

Jessilym

“The Lord sees all”

No U.S. birth series

—

Literary

Geslyn

“the Lord sees all”

No U.S. birth series

—

English · Literary

Ted

“a gift from God” · “having heart”

29RareEasing

>99% boys

Literary

Gessandra

“the Lord sees all”

No U.S. birth series

—

Literary

Gessaka

“the Lord sees all”

No U.S. birth series

—

Literary

Gessilyn

“the Lord sees all”

No U.S. birth series

—

Sibling ideas

Names that share Tom’s feel without repeating its first letter or rhyming with it.

A brother for Tom

A sister for Tom