Hafþór

half Thor
Old Norse origin · Boy name
97% boys3% girls
#1977US 2023
10Births / yr
Stable
Top 1.5%Percentile

What does Hafþór mean and where does it come from?

Hafþór is composed of the elements 'haf' meaning 'half' and 'Þór' referring to the Norse god Thor.

Cultural significance
The name is rooted in Norse mythology and has historical usage in Iceland and other Nordic countries.
Peak popularity
Reached #1977 in 2015 — currently #1977 in the US.
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Related Reading
Old Norse-origin baby names with timeless appeal
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What middle names flow best with Hafþór?

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

Hafþór Jack
One syllable · timeless choice
Hafþór John
One syllable · timeless choice
Hafþór Luke
One syllable · timeless choice
Hafþór Miles
One syllable · vintage charm
Hafþór Beau
One syllable · on the rise
Hafþór Brooks
One syllable · timeless choice
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Middle Names
The best middle names for Hafþór
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How popular is Hafþór right now?

Holding steady — currently #1977 in the US out of 135.5k tracked names

US Trend 20192023#1977 · Top 1.5%
2019
2020
2021
2022
2023
YearUS RankBirthsvs Prior Year
2023#197710stable
2022#197710stable
2021#197710stable
2020#197710stable
2019#197710
💎Hafþór is exceptionally rare — it does not appear in US Social Security records, meaning fewer than 5 babies per year have received this name.

What are good nicknames for Hafþór?

Common
HafHa

Famous people named Hafþór

HJ
Hafþór Júlíus Björnsson
Icelandic professional strongman and actor, known for his role as 'The Mountain' in Game of Thrones.
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Celebrity Names
What celebrities named their babies in 2025
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Common questions about the name Hafþór

What does the name Hafþór mean?
Hafþór means "half Thor" — a name rooted in Old Norse 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 Hafþór?
Hafþór is currently a distinctive and less common name as a baby name in the US and is holding steady in popularity, a reliable classic that parents consistently choose.
What is the cultural origin of Hafþór?
Hafþór originates from Old Norse tradition. Old Norse names tend to carry strong cultural heritage and have spread across the world through migration, literature, and religion over centuries.
How does Hafþór sound with different last names?
As a one-syllable name, Hafþór flows best with last names of two or three syllables. Avoid last names ending in the same sound as Hafþór ends, as this can create an unwanted rhyme. Test by saying the full name out loud several times.
Is Hafþór more of a girl or boy name?
Hafþór is primarily used as a boy name, giving it a clear, timeless character while remaining accessible to modern families.