MallowbyNames

Rainbow

RAIN-boh · A multicolored arc in the sky, symbol of hope and promise.

2025 rank (girls)
#6,546
Babies named in 2025
17
Peak popularity
1980
2025 frequency
1 in 94,545 girls
Usually for
Girls
Trend
Declining since 2019

Declining since 2019, #6,546 for girls today.

Popularity of Rainbow since 1971

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

91928198020002020Most births 1980Girls
Data table (by decade)
DecadeGirls
1970s112
1980s130
1990s48
2000s54
2010s152
2020s110

Meaning & origin

Rainbow is an English word name that emerged as a given name in the early 1970s, first recorded in 1971. Its popularity peaked in 1980, reflecting the cultural and spiritual interests of the era. Since 2019 it has been falling in usage, and by 2025 it ranked 6,546th with a rate of approximately 1 in 94,545 births. Rainbow remains a distinctive choice, associated with nature and positivity.

Rainbow is an English word name derived from the natural phenomenon. It has been used as a given name since the early 1970s, part of the late 20th-century trend of adopting nature and virtue words as first names. Its popularity peaked in 1980, when it was among the more distinctive choices in the counterculture movement.

Nicknames & variants

Nicknames: Rain, Bow, Rainy

Sibling names for Rainbow

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

Sisters: Sunny, Skye, Luna, Aurora, Summer

Brothers: River, Ocean, Forest, Storm, Cedar

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

R is for Rainbow, our favorite little girl.

R is for Rainbow…”

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

Make Rainbow's book

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

Questions parents ask

What does the name Rainbow mean?
Rainbow directly refers to the natural meteorological phenomenon, symbolizing beauty, promise, and diversity.
How popular is the name Rainbow?
Rainbow is a rare name. In 2025 it ranked 6,546th in the United States, with a frequency of about 1 in 94,545 births.
Is Rainbow a boy's or girl's name?
Rainbow is used predominantly for girls, though it can be unisex.