Thomas means “twin” and originates from Aramaic.
Meaning and Origin
Thomas is a male given name of biblical origin that developed from the Aramaic word תאומא or תאמא, meaning “twin”. Within the New Testament, the name was used as the nickname of one of the Twelve Apostles. In the gospel of John (11:16, 20:24), this Aramaic nickname is translated directly into Greek as the noun δίδυμος (dídumos), which also means twin.
The name entered Ancient Greek as Θωμᾶς (Thōmâs), serving as the Biblical Greek transcription of the original Aramaic term. From Ancient Greek, it was adopted into Latin as Thōmās, which appears throughout the Latin Vulgate translation of the Bible. Over subsequent centuries, English inherited the name directly from Middle English Thomas.
In English usage, the noun thomas also came to signify an infidel or doubter, a definition derived directly in reference to the doubting Apostle. Thomas has been used as a personal given name since the Middle Ages. Notable early medieval individuals bearing the name include Thomas the Presbyter from the 7th century, Thomas the Slav from the 8th century, and Thomas of Bayeux, who died in 1100. Following these early centuries of use, the name grew widely popular beginning in the 13th century.
Pronunciation
In standard American English, Thomas is pronounced as TOM-uhs. The first syllable rhymes with mom or calm, and the second syllable rhymes with bus. Although the name begins with the letters th, speakers pronounce the initial consonant as a hard T sound rather than the soft fricative heard in words such as thank or thin.
Popularity in the US
Alongside other traditional choices in the baby name meanings collection, Thomas first appears in the SSA data in 1880, when it reached its peak rank of #8, and over time it has been most often given to boys. In 1950, Thomas held the #8 spot with 45,596 babies, before moving down to #25 with 17,564 babies in 1980. By 2000, it occupied #33 with 12,638 babies, and in 2010, it stood at #62 with 7,136 babies. The name rose to #45 with 6,452 babies in 2020, and by 2025 it climbed to its latest rank of #34 with 6,917 babies. Across the entire period starting in 1880, a total of 2,358,576 US boys have been given the name.
| Year | US rank (boys) | Babies named Thomas |
|---|---|---|
| 1950 | #8 | 45,596 |
| 1980 | #25 | 17,564 |
| 2000 | #33 | 12,638 |
| 2010 | #62 | 7,136 |
| 2020 | #45 | 6,452 |
| 2025 | #34 | 6,917 |
Source: US Social Security Administration baby name data (names given to at least 5 babies in a year).
Nicknames
Common short forms of Thomas include Tom, Tommy, and Thom. Parents and friends often select Tom or Tommy for casual everyday speech, while Thom provides an alternative spelling that retains the traditional h from the full name.
Famous People Named Thomas
- Thomas Jefferson: The third president of the United States, author of the Declaration of Independence, and founder of the University of Virginia.
- Thomas Edison: The prolific American inventor whose achievements included the development of the practical incandescent electric light bulb, the phonograph, and the motion picture camera.
- Thomas Paine: The political philosopher and author whose 1776 pamphlet Common Sense helped inspire the American Revolution and the push for independence.
Middle and Sibling Names
Complementary middle names for Thomas include Alexander, Charles, Edward, Henry, James, Joseph, and Daniel.
Coordinating sibling names include Theodore, Benjamin, Charlotte, Clara, Emily, and Samuel.
FAQ
Which ancestral root words led to the name Thomas?
The name Thomas developed from the Aramaic word תאומא or תאמא, which translates to twin. In the gospel of John (11:16, 20:24), this term was translated into Greek as δίδυμος. The word later entered Ancient Greek as Θωμᾶς, passed into Latin as Thōmās in the Vulgate, and was inherited through Middle English before reaching modern English.
How many boys in the United States have been named Thomas in total?
A total of 2,358,576 US boys have been named Thomas since 1880. The name first appeared in the official 1880 figures at rank #8 and has continued through 2025 at rank #34. Across this full span of years, the name has been given most often to boys.
How does the peak year for Thomas compare with its latest rank?
Thomas achieved its peak rank of #8 in 1880, whereas its latest position in 2025 was rank #34. The name also held the #8 position in 1950 with 45,596 babies before shifting to #25 in 1980 with 17,564 babies, #33 in 2000 with 12,638 babies, #62 in 2010 with 7,136 babies, and #45 in 2020 with 6,452 babies, leading up to #34 with 6,917 babies in 2025.
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