MallowbyNames

Tomasz

to-MAHSH · Tomasz is the Polish form of Thomas, meaning 'twin'.

2025 rank (boys)
#12,008
Babies named in 2025
5
Peak popularity
1995
2025 frequency
1 in 341,615 boys
Usually for
Boys
Trend
Declining since 1995

Declining since 1995, #12,008 for boys today.

Popularity of Tomasz since 1969

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

101929198020002020Most births 1995Boys
Data table (by decade)
DecadeBoys
1960s7
1970s27
1980s157
1990s239
2000s183
2010s116
2020s47

Meaning & origin

The name Tomasz, ranking 12,008th in the U.S. in 2025, is a distinctly Polish form of Thomas. It peaked in popularity in 1995, and since then its usage has been falling, reflecting broader trends in immigration and naming preferences. Approximately 1 in 341,615 boys received the name in 2025. While rarely ranking among top U.S. names, Tomasz remains a strong cultural identifier for Polish-American families, with a classic sound that pairs well with traditional Polish sibling names.

Tomasz is the Polish cognate of Thomas, derived from the Aramaic name Te'oma, meaning 'twin'. Introduced to Poland via Christianity, it has been in use since the Middle Ages and remains a classic Polish name.

Nicknames & variants

Nicknames: Tomek, Tomuś

Variants: Tomas, Tomaš

Sibling names for Tomasz

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

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

T is for Tomasz, our favorite little boy.

T is for Tomasz…”

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

Make Tomasz's book

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

Questions parents ask

What does the name Tomasz mean?
Tomasz means 'twin', derived from the Aramaic Te'oma.
How popular is the name Tomasz?
In 2025, Tomasz ranked 12,008th in the U.S., with about 1 in 341,615 boys given the name.
Is Tomasz a boy's name?
Yes, Tomasz is traditionally a masculine name.