MallowbyNames

Rai

RYE · It can mean 'trust' or 'belief' in Japanese, or be a short form of names like Raiden.

2025 rank (boys)
#3,757
Babies named in 2025
29
Peak popularity
2023
2025 frequency
1 in 58,899 boys
Usually for
Girls & boys
Trend
Rising since 2001

Rising since 2001, #3,757 for boys today.

Popularity of Rai since 1952

Babies named Rai per year in U.S. Social Security records.

1224361960198020002020Most births 2023GirlsBoys
GirlsBoys
Data table (by decade)
DecadeGirlsBoys
1950s150
1960s100
1970s00
1980s50
1990s631
2000s668
2010s54125
2020s45155

Meaning & origin

Rai is a short, versatile name that has seen a steady rise in use in the United States since 2001. First recorded in 1993, it reached its peak popularity in 2023, and by 2025 it ranked 3,757, with about 1 in 58,899 newborns given the name. Its top state of use is California, reflecting its appeal in diverse, trend-conscious communities. The name's multiple possible origins, including Japanese and modern invented usage, give it a broad, cross-cultural feel. Rai fits a modern preference for concise, vowel-rich names and is used for both boys and girls, though it leans slightly masculine in recent data.

Rai has multiple origins. In Japanese, it is often a short form of longer names like Raiden (meaning 'thunder and lightning') or can mean 'trust' or 'belief' as a standalone word. In modern English usage, it also emerged as a short, stylish name, sometimes derived from Irish or Scottish surnames like O'Rai, but this is less common. Its use as a unisex name in the U.S. has been rising since 2001, reflecting a trend toward simple, vowel-heavy names.

Where Rai is most popular

Births per 100,000 boys by state, 2025. The lightest shade means too few recorded births.

Sibling names for Rai

Names that share Rai's style, for a brother or sister.

Sisters: Maya, Kai, Sora, Lena, Zoe

Brothers: Ren, Kai, Leo, Finn, Jax

A parent animal hugging its little one, the personalized name page

R is for Rai, our favorite little person.

R is for Rai…”

In a Mallowby alphabet book, Rai's letter becomes Rai's page: hand-illustrated, printed hardcover or paperback, made just for them.

Make Rai's book

Books for siblings or grandkids? The second book is 15% off.

Questions parents ask

What does the name Rai mean?
Rai can mean 'trust' or 'belief' in Japanese, or be a short form of Raiden. Its meaning in modern English use is often open to interpretation.
Is Rai a popular name?
In the U.S., Rai is not common. In 2025, it ranked 3,757, with about 1 in 58,899 newborns given the name.
Is Rai a boy or girl name?
Rai is used for both boys and girls in the U.S., though it has been more commonly given to boys in recent years.