MallowbyNames

Thor

thor · Thunder, from the Norse god of thunder, thunder and lightning, and strength.

2025 rank (boys)
#2,833
Babies named in 2025
44
Peak popularity
2015
2025 frequency
1 in 38,820 boys
Usually for
Boys
Trend
Declining since 2014

Declining since 2014, #2,833 for boys today.

Popularity of Thor since 1904

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

3979118192019602000Most births 2015Boys
Data table (by decade)
DecadeBoys
1900s5
1910s86
1920s117
1930s91
1940s137
1950s208
1960s568
1970s538
1980s469
1990s498
2000s699
2010s1,026
2020s415

Meaning & origin

Thor is a name of Norse origin meaning 'thunder,' directly referencing the hammer-wielding god of thunder in Norse mythology. The name has been used in Scandinavia for centuries but saw a resurgence in the United States after the debut of Marvel's Thor comic book in the 1960s, with a more dramatic spike following the 2011 film. According to U.S. Social Security data, Thor first appeared on the charts in 1904, though it remained extremely rare for decades. Its peak year was 2015, when it ranked 2833 and was given to roughly 1 in 38820 boys. Since 2014, the name has been falling in popularity. In 2025, its rank was 2833, and its most common state of use was California. While pop culture has certainly boosted the name, Thor retains a strong, mythological gravitas that appeals to parents seeking a powerful, short name with deep roots.

Thor derives from Old Norse Þórr, the name of the hammer-wielding god of thunder in Norse mythology. The name is connected to the Germanic *Þunraz, meaning 'thunder,' and shares a root with the English word 'thunder.' Thor has been used as a given name in Scandinavia for centuries and gained wider recognition through the Marvel comics and films.

Where Thor is most popular

Births per 100,000 boys by state, 2025. The lightest shade means too few recorded births.

Sibling names for Thor

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

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

T is for Thor, our favorite little boy.

T is for Thor…”

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

Make Thor's book

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

Questions parents ask

What does the name Thor mean?
Thor means 'thunder,' derived from the Old Norse god of thunder, lightning, and strength.
How popular is the name Thor?
In 2025, Thor ranked 2833 in the U.S., with approximately 1 in 38820 boys given the name. Its peak popularity was in 2015.
Is Thor a boy or girl name?
Thor is traditionally a boy's name, strongly associated with the male Norse god.