MallowbyNames

Teaghan

TEE-gan · Of debated origin; possibly derived from an Irish or Scottish surname meaning 'little poet' or 'fair'. An established modern given name.

2025 rank (girls)
#7,885
Babies named in 2025
13
Peak popularity
2011
2025 frequency
1 in 123,636 girls
Usually for
Girls
Trend
Declining since 2011

Declining since 2011, #7,885 for girls today.

Popularity of Teaghan since 1993

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

306191200020102020Most births 2011GirlsBoys
GirlsBoys
Data table (by decade)
DecadeGirlsBoys
1990s510
2000s34226
2010s50143
2020s1757

Meaning & origin

Teaghan is a modern feminine name rooted in Irish heritage, first recorded in the United States in 1993. It peaked in popularity in 2011, after which it entered a period of decline. Despite its rarity, the name has maintained a consistent presence, ranking 7,885 as of 2025, with only about 1 in 123,636 girls receiving the name. Teaghan's sound aligns with the trend of Irish-inspired names like Teagan and Reagan, and its pronunciation is straightforward (TEE-gan). The name has not been associated with any prominent top states, indicating broad but sparse usage across the country. Its etymology traces back to the Irish surname Ó Tadhgáin, linking it to the ancient name Tadhg meaning 'poet'. For parents seeking a name that combines Celtic tradition with a contemporary feel, Teaghan offers a distinctive choice.

Teaghan likely derives from the Irish surname Ó Tadhgáin, meaning 'descendant of Tadhg'. Tadhg was an ancient Irish name meaning 'poet' or 'storyteller'. The name emerged in the late 20th century as a feminine given name, possibly influenced by similar names like Teagan and Reagan. It is considered a modern variant with traditional roots.

Nicknames & variants

Nicknames: Tea, Gan, T

Variants: Teagan, Tegan, Teigan, Tiegan

Sibling names for Teaghan

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

Sisters: Maeve, Saoirse, Kiera, Rowan, Aisling

Brothers: Declan, Cian, Finn, Liam, Ronan

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

T is for Teaghan, our favorite little girl.

T is for Teaghan…”

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

Make Teaghan's book

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

Questions parents ask

What does the name Teaghan mean?
The name Teaghan is thought to mean 'little poet' or 'fair', derived from the Irish name Tadhg, meaning 'poet' or 'storyteller'.
How popular is the name Teaghan?
Teaghan is a rare name. As of 2025, it ranked 7,885 in the United States, with approximately 1 in 123,636 girls given this name. Its peak popularity was in 2011.
Is Teaghan a boy or girl name?
Teaghan is predominantly used as a girl's name, though it has unisex origins and is occasionally used for boys.