Thomasin
Twin
England origin · Girl name
3% boys97% girls
#7212US 2023
16Births / yr
Rising
16All-time births
📅 Since 196300
How to pronounce Thomasin
TAH·MAZ·in
/ˈtɑ.ˈmæz.ɪn/ · stress on TAH · 3 syllables
Twin
England origin · Girl name

What does Thomasin mean and where does it come from?

Thomasin is a feminine form of the name Thomas, which derives from the Aramaic word 'twin'. This name was first recorded in the 16th century and has historical usage in England. Notable bearers include Thomasin von Beringen, a 14th-century German scholar.

Cultural significance
Thomasin has been a cherished name across cultures, particularly in England-speaking communities, where it reflects values of twin.
Peak popularity
Reached #7649 in 1963 — currently #7212 in the US.
🌿
Related Reading
England-origin baby names with timeless appeal
Browse names →

What middle names flow best with Thomasin?

Thomasin works best with short, strong middle names — one or two syllables keep the full name from becoming a mouthful

Thomasin Grace
Most popular combo · classic
Thomasin Rose
Floral · soft ending
Thomasin Mae
Sweet · timeless
Thomasin Claire
French influence · crisp
Thomasin Jane
Literary · strong
Thomasin Skye
Modern · airy feel
👶
Middle Names
The best middle names for Thomasin
Browse ideas →

How popular is Thomasin right now?

Rising fast — up 3946 spots — currently #7212 in the US out of 135.5k tracked names

US Trend 20202023#7212 · Top 5.3%
2020
2021
2022
2023
YearUS RankBirthsvs Prior Year
2023#721216▲ up 3946 · +78% births
2022#111589▼ down 2236 · -25% births
2021#892212▲ up 4703 · +100% births
2020#136256

The story of Thomasin

Thomasin is a relatively modern name, first appearing in US records in 1963. With 16 total births recorded, Thomasin remains relatively uncommon. The name has grown more popular over time, rising from #13625 in 2020 to #7212 in 2023.

Names that peaked alongside Thomasin in 1963:

Thomasin by decade

Thomasin peaked in the 1960s. See all 1960s names →

DecadeBirths
1960s5
1970s5
2020s6
💎Thomasin has only 16 total recorded births since 1963 — rarer than 99% of names in our database.

What are good nicknames for Thomasin?

Common
ThoThomThomieThomyAsin

Common questions about the name Thomasin

What does the name Thomasin mean?
Thomasin means "Twin" — a name rooted in England tradition that carries both historical depth and timeless appeal. The meaning reflects values that have made this name endure across generations.
How popular is the name Thomasin?
Thomasin is currently a distinctive and less common name as a girl name in the US and is rapidly gaining popularity — searches for Thomasin have increased significantly in recent years.
What is the cultural origin of Thomasin?
Thomasin originates from England tradition. England names tend to carry strong cultural heritage and have spread across the world through migration, literature, and religion over centuries.
How do you pronounce the name Thomasin?
Thomasin is a three-syllable name pronounced T AA1 M AE1 Z IH0 N. The pronunciation is straightforward for English speakers, and the name reads clearly on paper — an important practical consideration for parents.
What sibling names go well with Thomasin?
Thomasin pairs beautifully with sibling names that share a similar England heritage or complement its melodic and flowing sound. Names with a similar vibe create a cohesive sibling set without matching too closely.