MallowbyNames

Thomasa

tuh-MAH-suh · Feminine form of Thomas, meaning 'twin'.

Peak popularity
1963
Usually for
Girls
Trend
Holding steady

Holding steady.

Popularity of Thomasa since 1921

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

7132019602000Most births 1961Girls
Data table (by decade)
DecadeGirls
1920s21
1930s6
1940s6
1950s57
1960s125
1970s46
1980s32
1990s11
2000s0
2010s0
2020s0

Meaning & origin

Thomasa is a distinctly rare feminine form of Thomas, first recorded in U.S. data in 1921. Its peak year was 1963, yet even then it never approached common usage, with fewer than five births annually and a one-in-N occurrence too low to calculate. The name's trajectory has been stable, meaning it persists at the same very low level decade after decade without signs of revival. Most of its use occurred in the 1960s, but it never appeared in any state's top 1000 names. For parents seeking an obscure, historically grounded name with a clear meaning, Thomasa offers a connection to the ancient Aramaic word for 'twin', but its rarity means it will likely remain a unique choice.

Thomasa is the feminine form of Thomas, derived from the Aramaic word 'te'oma' meaning 'twin'. The name came into use via Greek (Thomas) and Latin, with feminine variants appearing in various European languages. It has been used sporadically in English-speaking countries since the 19th century, but never achieved widespread popularity.

Nicknames & variants

Nicknames: Tommy, Tomi, Thomy

Variants: Thomasina, Tamsin, Toma

Sibling names for Thomasa

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

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

T is for Thomasa, our favorite little girl.

T is for Thomasa…”

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

Make Thomasa's book

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

Questions parents ask

What does the name Thomasa mean?
Thomasa means 'twin', derived from the Aramaic word 'te'oma'.
How popular is the name Thomasa?
Thomasa is extremely rare. In the United States, it has never ranked in the top 1000 names. Its peak usage was in 1963 with fewer than five births. It appears in the Social Security data from 1921 onward but remains below 0.001% of births in any year.
Is Thomasa a boy or girl name?
Thomasa is typically considered a feminine name, as a female variant of Thomas.