Mitsu
A girl's name of Japanese origin with 5 recorded U.S. births.
Meaning & Origin
Mitsu is a vintage name that peaked in early twentieth-century America and has since faded from common use. For parents drawn to retro charm, that quiet history is part of the appeal.
The open, approachable quality of its ending — ending on a vowel softens the overall impression — keeps the name compact and easy to pair with longer middle names or surnames.
Mitsu is not in the current top 1,000 girl names nationally, making it an uncommon choice — though your state or community may differ.
Mitsu is a girl's baby name of Japanese origin, a traditional Japanese name meaning 'light' (光), 'honey' (蜜), or 'three' (三), depending on the kanji chosen. The name has a warm, luminous quality that has been used in Japan for centuries.
EtymologyShow more
Though Mitsu dates back to 1922 in U.S. records, its etymological path is not always straightforward. Names that predate modern naming databases sometimes resist easy classification — they may have been oral traditions, regional family names, or adaptations that were never systematically recorded. The Japanese classification provides a starting point, but the full derivation likely involves more nuance than a single label can capture.
With only 5 recorded births, Mitsu has not been widely studied in naming literature — its story belongs primarily to the families who chose it.
At a Glance
Popularity Over Time
Mitsu has 1+ years of history in the U.S., first appearing in 1922.
Popularity by Decade
| Decade | Births | Trend |
|---|---|---|
| 1920s | 5 | — |
The Story of Mitsu
A Greatest Generation name
Peaking in 1922, Mitsu is a name steeped in history. Girls named Mitsu are most likely born between 1922 and 1922.
How rare is Mitsu?
With fewer than 500 recorded births, Mitsu is an exceptionally rare name — a one-of-a-kind choice.
The journey through the decades
First appeared in the records in 1922, peaked in the 1920s with 5 births that decade.
Year-by-Year Data
View complete yearly data(1 years, 1922–1922)
| Year | Births | Rank |
|---|---|---|
| 1922 | 5 | #5546 |
Source: U.S. Social Security Administration. Showing years with 5+ recorded births.
Frequently Asked Questions
Is Mitsu a boy's or girl's name?
When was Mitsu most popular?
How popular is the name Mitsu?
Explore More
Data source: U.S. Social Security Administration, 1922–1922