MallowbyNames

Shiro

SHEE-roh · Fourth son (or sometimes white or castle) depending on the kanji used.

Peak popularity
1922
Usually for
Boys
Trend
Holding steady

Holding steady.

Popularity of Shiro since 1915

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

71320192019602000Most births 1922Boys
Data table (by decade)
DecadeBoys
1910s47
1920s120
1930s25
1940s0
1950s0
1960s0
1970s0
1980s0
1990s0
2000s0
2010s5
2020s11

Meaning & origin

Shiro is a Japanese male name with multiple possible meanings derived from its kanji. It has never ranked among the top 1000 names in the U.S., reflecting its rarity outside of Japan. The name saw its peak year in 1922, likely due to early Japanese immigration or cultural influence. Since then, its usage has remained stable and low, consistent with its trajectory as a niche name. Notably, Shiro has rarely been recorded in top states, indicating little regional concentration. As a traditional Japanese name, Shiro carries specific cultural significance tied to birth order or symbolic concepts like whiteness or castles.

Shiro is a Japanese male name that can mean 'fourth son' when written with the kanji 四郎, or 'white' (白), or 'castle' (城), among other possibilities. Historically, it was often used as a naming pattern for the fourth-born son in traditional Japanese families. Like many Japanese names, the meaning depends entirely on the kanji characters chosen by the parents.

Sibling names for Shiro

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

Sisters: Akiko, Haru, Keiko, Miyako, Yuki, Yaeko

Brothers: Jiro, Kenji, Saburo, Taro, Yoshio

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

S is for Shiro, our favorite little boy.

S is for Shiro…”

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

Make Shiro's book

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

Questions parents ask

What does the name Shiro mean?
Shiro can have several meanings depending on the kanji used: 'fourth son' (四郎), 'white' (白), or 'castle' (城), among others. It is most commonly associated with 'fourth son' in traditional Japanese naming.
How popular is the name Shiro?
Shiro has never ranked in the U.S. top 1000 names in any year. It peaked in 1922 but remains very rare in English-speaking countries.
Is Shiro a boy or girl name?
Shiro is predominantly a masculine name in Japan, though it can be unisex depending on the kanji. In the U.S., it is almost exclusively used for boys.