Rei
Gender: Unisex
Meaning: Queen — regal grace and sovereign strength
Origin: Spanish
Popularity: Ranked #3363 in 2025 with 35 babies born.
History: A variant or related form of Reina. Shares the meaning 'Queen.'
Similar names: reia, reid, reika, reilly, reily, rein, reina, reis
Name length: 3 letters
How common is Rei? About 1 in 56,415 babies born in 2025 were named Rei, or roughly 0.2 per day in the United States.
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Frequently asked about Rei
What does the name Rei mean?
Rei means “Queen — regal grace and sovereign strength” from Spanish roots.
What is the origin of the name Rei?
Rei has Spanish origin. The traditional meaning is “Queen — regal grace and sovereign strength”.
How popular is Rei?
Rei ranked #3314 in 2025 — given to 35 babies that year.
When was Rei most popular?
Rei peaked in 2020 with 48 babies registered that year.
Is Rei a boy or girl name?
Rei is used for both boys and girls. In the records, about 46% of Reis are boys and 54% are girls.
Is the name Rei rising or falling in popularity?
Rei has fallen 54 spots in the rankings over the last 5 years — from #3260 in 2020 to #3314 in 2025.
How long has Rei been recorded?
Rei appears in birth records across 37 years — from 1974 through 2025.