Rei
Boy name · #3347 in 2025 · Uniqueness 47/100
In 2025, 35 baby boys were named Rei, placing it at #3347 in the official national rankings. A decade ago it stood at #4545, so the name has been rising over the past ten years. Roughly one in every 51,429 boys born in 2025 was named Rei.
Babies named Rei per year, 1880–2025. Source: SSA.
The 38-year story
Rei first appears in the Social Security records in 1987, when 5 boys received the name. Its all-time peak is essentially right now: 2025, with 35 babies and a rank of #3314. Names at their peak can keep climbing — or be one trend cycle from the long slide that eventually hits most popular names. 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.
Unlock the 5-year forecast and compare Rei against up to 5 other names.
Uniqueness: will there be another Rei in class?
Rei scores 47 out of 100 on our uniqueness scale, which blends current rarity with five-year momentum — putting it in the "distinctive" band. That middle band is the sweet spot many parents hunt for: recognizable without being everywhere.
Where Rei is most common
State-level data for Rei is sparse in 2025 — the name's footprint is too small for most states to report (the SSA suppresses counts under 5 per state for privacy).
Names like Rei
Statistically, parents drawn to Rei tend to be choosing among names with similar popularity arcs, era profiles, and sounds — the closest matches in our model are Roi, Rafi, Rai, Rui, and Ramari.
Rank history (last 25 years)
| Year | Babies named Rei | Rank |
|---|---|---|
| 2025 | 35 | #3314 |
| 2024 | 29 | #3793 |
| 2023 | 19 | #5075 |
| 2022 | 19 | #5019 |
| 2021 | 34 | #3362 |
| 2020 | 16 | #5451 |
| 2019 | 30 | #3636 |
| 2018 | 28 | #3793 |
| 2017 | 22 | #4466 |
| 2016 | 14 | #6053 |
| 2015 | 21 | #4545 |
| 2014 | 9 | #8130 |
| 2013 | 6 | #10728 |
| 2012 | 8 | #8864 |
| 2011 | 14 | #5945 |
| 2010 | 15 | #5741 |
| 2009 | 13 | #6436 |
| 2008 | 21 | #4540 |
| 2007 | 14 | #5901 |
| 2006 | 8 | #8732 |
| 2005 | 8 | #8299 |
| 2004 | 13 | #5813 |
| 2003 | 16 | #4815 |
| 2002 | 12 | #5725 |
| 2001 | 8 | #7536 |
Frequently asked questions
Is Rei a popular boy name?
Rei ranked #3347 among boys in 2025 with 35 babies given the name — outside the top 500, making it an uncommon pick. Ten years earlier it ranked #4545.
When was the name Rei most popular?
Rei peaked in 2025, when 35 American boys received the name (ranked #3314 that year). That peak is current — the name is at or near its all-time high right now.
How rare is the name Rei?
In 2025, roughly 1 in 51,429 newborn American boys was named Rei. It scores 47/100 on our uniqueness scale (rarity blended with momentum), which we classify as "distinctive".
Data source: U.S. Social Security Administration name statistics, 1880–2025, national and state files. Counts reflect Social Security card applications; names with fewer than 5 occurrences in a state-year are suppressed by the SSA.