Rei

Unisex

Rei has been given to 1,028 babies in the U.S. since 1974. It peaked in 2019.

Popularity over time births per year, 1880–2025

Hover or tap the chart to read any year.

Total babies

1,028

Peak year

2019 (67 babies)

Rank in 2025

Below top 1000

First recorded

1974

10-year trend

▲ +74%

Gender split

54% girls / 46% boys

Spellings & variants

Names one letter away from Rei — alternate spellings parents actually use.

Rexboy

60,590 babies since 1880

Reidboy

41,783 babies since 1886

Remigirl

27,066 babies since 1915

Reyboy

10,222 babies since 1915

Renunisex

3,634 babies since 1915

Reagirl

2,063 babies since 1892

Names with a similar vibe

Same primary gender, peaked around the same years, and roughly as common as Rei.

Janneygirl

1,029 babies since 1947

Joleighgirl

1,029 babies since 1970

Ehlanigirl

1,027 babies since 2017

Zissygirl

1,030 babies since 1972

Emoriegirl

1,030 babies since 1996

Alynnagirl

1,026 babies since 1990

Azurigirl

1,026 babies since 2005

Yohannagirl

1,025 babies since 1972

FAQ

How popular is the name Rei?

Rei has been given to 1,028 babies in the U.S. since 1974. It ranked below the top 1000 in 2025.

When did the name Rei peak?

Rei peaked in 2019, when 67 babies were given the name.

Is Rei a girl or boy name?

Rei is a unisex name, used for both girls and boys.

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