MallowbyNames

Kiyoko

清子kee-YOH-koh · One meaning is 'pure child' (from Japanese 'kiyoki' pure and 'ko' child), but it can also be interpreted as 'clean child' or simply 'pure.'

2025 rank (girls)
#11,932
Babies named in 2025
7
Peak popularity
1921
2025 frequency
1 in 229,610 girls
Usually for
Girls
Trend
Rising since 2005

A 1920s favorite, climbing again.

Popularity of Kiyoko since 1912

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

193958192019602000Most births 1921Girls
Data table (by decade)
DecadeGirls
1910s207
1920s417
1930s88
1940s5
1950s0
1960s0
1970s22
1980s30
1990s17
2000s27
2010s57
2020s53

Meaning & origin

Kiyoko is a Japanese name meaning 'pure child,' a meaning that has resonated modestly in the United States since it was first recorded in 1912. It peaked in 1921 but remained rare throughout the 20th century. After a long decline, the name has been rising again since 2005, reflecting a broader interest in Japanese names. In 2025 it ranked 11,932, with about 1 in 229,610 baby girls receiving the name. This revival, though still at a low level, places Kiyoko among a small group of Japanese names gaining renewed attention in the United States.

Kiyoko is a Japanese feminine name composed of the elements 'kiyoki' (meaning 'pure' or 'clean') and 'ko' (meaning 'child'). The name has been in use in Japan since ancient times, often given to girls with the hope of a pure and virtuous life. It saw modest usage in the United States among Japanese American communities and gained some recognition internationally through cultural figures.

Nicknames & variants

Nicknames: Kiyo, Koko

Sibling names for Kiyoko

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

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

K is for Kiyoko, our favorite little girl.

K is for Kiyoko…”

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

Make Kiyoko's book

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

Questions parents ask

What does the name Kiyoko mean?
Kiyoko typically means 'pure child' in Japanese, from the elements 'kiyoki' (pure) and 'ko' (child).
How popular is the name Kiyoko?
Kiyoko is rare in the United States, ranking 11,932 in 2025 with about 1 in 229,610 girls given the name that year.
Is Kiyoko a boy or girl name?
Kiyoko is almost exclusively a girl's name, though the element 'ko' can be used in unisex names in Japanese.