Rei
Rei was the 3363rd most popular name for boys in 2025, given to 35 babies. That is its highest rank since records began in 1880. Over the last ten years it has moved up 1,310 places. More babies were named Rei in the 2010s than in any other decade.
Meaning Not yet researched how we research meanings
- Rank in 2025
- #3,363 boys, up 2,280 places since 2020
- Babies in 2025
- 35boys
- Girls and boys
- 49% girls, 51% boys2021–2025
- Peak year
- 202535 babies
- Total since 1880
- 1,028babies recorded
Rei popularity since 1880
| Year | Rank (girls) | Rank (boys) | Babies (girls) | Babies (boys) |
|---|---|---|---|---|
| 2025 | #5,364 | #3,363 | 24 | 35 |
| 2020 | #3,269 | #5,643 | 48 | 16 |
| 2010 | #8,618 | #5,972 | 14 | 15 |
| 2000 | — | #6,719 | — | 10 |
| 1990 | #11,080 | — | 7 | — |
| 1980 | — | — | — | — |
| 1970 | — | — | — | — |
| 1960 | — | — | — | — |
| 1950 | — | — | — | — |
| 1940 | — | — | — | — |
| 1930 | — | — | — | — |
| 1920 | — | — | — | — |
| 1910 | — | — | — | — |
| 1900 | — | — | — | — |
| 1890 | — | — | — | — |
| 1880 | — | — | — | — |
How popular is Rei, counting every spelling?
Rei has no other common spelling that sounds the same.
How many kids will share the name Rei?
35 of the 3,606,400 babies born in the US in 2025 were named Rei (0.01 per 1,000 births). For a boy named Rei born in 2025, the chance that another child with the same name is in a class of 20 children the same age is under 1 in 50. If every grade liked the name as much as the 2025 babies do, only about one elementary school in 240 (of 430 pupils) would have a child named Rei.
Shares of all registered births (NCHS); classes assumed to be children born the same year. How we estimate this.
How old are people named Rei?
About 500 people born in the US named Rei are alive today, with a median age of 10; half are between 5 and 19. That makes Rei a young name: most people with it are children.
Babies given the name each year (SSA) times the share of that birth year still alive (SSA life tables). Counts people born in the US only. Method.
Rei by state
How common Rei was among boys born in each state in 2021–2025. It is notably more common than nationally in California (1.9×). In 48 states fewer than five boys a year got the name, too few for SSA to publish, so those states show as zero.
Names with a similar history
These names rose and fell in step with Rei: their share of US boys followed the most similar curve since 1880. If you like Rei, they share its era and feel.
Questions about the name Rei
How popular is the name Rei?
Rei was the 3363rd most popular name for boys in 2025, given to 35 babies. That is its highest rank since records began in 1880. Over the last ten years it has moved up 1,310 places. More babies were named Rei in the 2010s than in any other decade.
Is Rei a boy or girl name?
In 2021–2025, 49% girls, 51% boys given the name Rei in the US.
Where is Rei most popular?
In 2021–2025, Rei was most common in New York (0.04 per 1,000 boys), followed by California and Texas.