MallowbyNames

Kato

KAH-toh · Of uncertain origin; possibly derived from a Japanese surname or a shortened form of names like Katerina or Kathleen.

2025 rank (boys)
#2,641
Babies named in 2025
49
Peak popularity
2022
2025 frequency
1 in 34,859 boys
Usually for
Boys
Trend
Rising since 1991

Rising since 1991, #2,641 for boys today.

Popularity of Kato since 1914

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

193857192019602000Most births 2022Boys
Data table (by decade)
DecadeBoys
1910s10
1920s18
1930s0
1940s6
1950s0
1960s0
1970s11
1980s21
1990s64
2000s105
2010s337
2020s288

Meaning & origin

Kato first appeared in U.S. birth records in 1914, but for most of the 20th century it saw only sporadic use. The name began a sustained upward climb in popularity starting in 1991, and by 2022 it had reached its peak rank. In 2025, it ranked 2,641st, given to approximately 1 in 34,859 newborn boys. The name is most popular in Texas and California, reflecting its modern, multicultural appeal. Its etymological ties to both Japanese surnames and the widespread Katherine family give it a dual identity that feels both grounded and international.

Kato is a name with multiple possible origins. In Japanese, Katō (加藤) is a common surname meaning 'increase wisteria.' As a given name, it may also be a diminutive of Katherine (from Greek Aikaterine, of debated meaning) or a short form of Kathleen (Irish form of Katherine). Its use as a masculine first name in the United States has grown steadily since the 1990s, influenced by its simple, strong sound.

Where Kato is most popular

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

Nicknames & variants

Variants: Cato

Sibling names for Kato

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

Sisters: Nina, Lena, Mira, Sasha, Tessa

Brothers: Kai, Leo, Milo, Rico, Zane

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

K is for Kato, our favorite little boy.

K is for Kato…”

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

Make Kato's book

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

Questions parents ask

What does the name Kato mean?
Kato has multiple possible meanings depending on its origin. As a Japanese surname, it can mean 'increase wisteria.' It may also be a short form of names like Katherine or Kathleen, which traditionally mean 'pure.'
How popular is the name Kato in the United States?
In 2025, Kato ranked 2,641st for baby boys, with about 1 in 34,859 boys given the name. Its popularity has been rising since the early 1990s.
Is Kato a boy's or girl's name?
Kato is traditionally used as a masculine name, though its short form roots (e.g., Katherine) are feminine. In the United States, it is given almost exclusively to boys.