Thor
Boy name · #2840 in 2025 · Very rare
How old is the name Thor? In official American birth records, Thor has been tracked continuously since 1904, giving it 121 years of documented American history.
In 2025, 44 baby boys were named Thor, placing it at #2840 in the official national rankings. A decade ago it stood at #1438, so the name has been falling over the past ten years. Roughly one in every 40,909 boys born in 2025 was named Thor.
The 121-year story
Thor first appears in the Social Security records in 1904, when 5 boys received the name. Its peak came in 2015, when 118 boys were named Thor — good for #1438 that year. Today's parents encounter it on its way down the popularity curve, which for many parents is exactly the appeal. Following the curve matters more than today's snapshot: a name's position on its rise-peak-decline arc is the best predictor of how common it will feel in a kindergarten class five years from now.
Babies named Thor per year. Source: Official national birth records.
Unlock the 5-year forecast and compare Thor against up to 5 other names.
Uniqueness: will there be another Thor in class?
On our rarity read — which blends how common Thor is today with its five-year momentum — the name reads as "very rare". A high score means genuine rarity — your Thor will likely be the only one in the room, with the occasional spelling-out as the price.
Where Thor is most common
State-level data for Thor is too sparse in 2025 to rank by rate — in most states its count falls below the SSA's per-state reporting threshold (counts under 5 are withheld).
Names like Thor
Statistically, parents drawn to Thor tend to be choosing among names with similar popularity arcs, era profiles, and sounds — the closest matches in our model are Thane, Tobin, Caesar, Noor, and Baxter.
ThaneTobinCaesarNoorBaxterTahirNasserTimur
Rank history (last 25 years)
| Year | Babies named Thor | Rank |
|---|---|---|
| 2025 | 44 | #2833 |
| 2024 | 46 | #2789 |
| 2023 | 71 | #2078 |
| 2022 | 81 | #1917 |
| 2021 | 87 | #1799 |
| 2020 | 86 | #1766 |
| 2019 | 95 | #1678 |
| 2018 | 106 | #1576 |
| 2017 | 99 | #1612 |
| 2016 | 90 | #1724 |
| 2015 | 118 | #1438 |
| 2014 | 115 | #1436 |
| 2013 | 94 | #1624 |
| 2012 | 104 | #1535 |
| 2011 | 107 | #1505 |
| 2010 | 98 | #1599 |
| 2009 | 77 | #1873 |
| 2008 | 103 | #1553 |
| 2007 | 73 | #1928 |
| 2006 | 74 | #1840 |
| 2005 | 75 | #1752 |
| 2004 | 57 | #2075 |
| 2003 | 71 | #1717 |
| 2002 | 57 | #1943 |
| 2001 | 62 | #1800 |
Frequently asked questions
How old is the name Thor?
In official American birth records, the name Thor first appeared in 1904 (over 121 years ago), when 5 newborn boys received the name. It has been tracked in modern national records for 121 years.
Is Thor a popular boy name?
Thor ranked #2840 among boys in 2025 with 44 babies given the name — outside the top 500, making it an uncommon pick. Ten years earlier it ranked #1438.
When was the name Thor most popular?
Thor peaked in 2015, when 118 American boys received the name (ranked #1438 that year). Since 2015 the name has declined from that high.
How rare is the name Thor?
In 2025, roughly 1 in 40,909 newborn American boys was named Thor. On our rarity scale (rarity blended with momentum) we classify it as "very rare".
Data source: Official American birth records, 1880–2025, national and state files. Counts reflect registered birth records for American families.