Boy · #3,509 in 2026

Koji

Name: Popularity of the name Koji in U.S. births, 1880–2026
Creator: U.S. Social Security Administration
License: https://www.ssa.gov/foia/
Keywords: Koji, baby name, popularity, U.S., SSA, rankings

Current Rank

#3,509

Peak Rank

#2,614 (2023)

Total Babies

675

5-Yr Trend

+103%

1922

First Year

2026

Last Year

2023

Peak Year

#2614

Peak Rank

675

Total Count

Years Active

The Story of Koji

Koji first appeared in U.S. Social Security Administration records as a baby boy name in 1922, with 5 babies given the name that year. Its peak popularity came in 2023, when 33 Kojis were born — ranking #3,471 that year. As of 2026, Koji ranks #3,509 for baby boys with 33 births, rising sharply (+103% over the past five years). In total, more than 675 Kojis have been born in the U.S. since records began in 1880, spanning the 1920s through the 2020s.

Popularity Over Time

Popularity by State

Top 10

11-50

51-100

101-500

500+

No data

Names that sound like Koji

Phonetically similar names — useful when Koji is the vibe but a different syllable count or letter feel might suit better. Linked entries have a profile on Peek a Name.

Cagey
Cocci
Kojo
Koshy
Koshi
Cojo
Kaji
Koj
Keiji
Cadgy
Coachee
Coja

Source: Datamuse . Phonetic similarity ranking, not curated.

Frequently Asked Questions about Koji

What does the name Koji mean?

Koji is a boy's name that has been used in U.S. records since 1922. Behind the Name doesn't list a specific etymology, but the name has remained in use across multiple decades.

How popular is Koji in 2026?

In 2026, Koji ranks #3,509 among boys' names in the U.S., with 33 babies given the name that year.

When was Koji most popular?

Koji reached its peak popularity in 2023, ranking #2,614 that year with 33 babies given the name.

In which U.S. states is Koji most popular?

Koji has historically been most popular in Hawaii, Washington, California. Rankings vary year to year, but these states show the strongest concentration of births named Koji.

Is Koji a unisex name?

In U.S. Social Security records, Koji is primarily a boy's name. We don't have meaningful data for it as a girl's name.

What names go well with Koji?

Names that share a similar style or popularity range with Koji include Jenkins, Oma, Ewart. These pairings are based on rank proximity and naming era in U.S. data.

About the name Koji

Koji is a boy baby name tracked by the U.S. Social Security Administration. It first appeared in SSA records in 1922 and has accumulated 675 births in the dataset. Koji's peak popularity came in 2023 when it ranked #2,614. Use the chart and map above to compare Koji's trajectory across years and U.S. states, or browse the related names section to discover similar choices.

Continue exploring

Data sources

Birth statistics (counts, ranks, years 1880–2026) — U.S. Social Security Administration . Predictions for years not yet released by SSA are computed by Peek a Name from historical trends; we update with official data as soon as it ships.
Etymology, cultural origins, and related forms — Behind the Name (used under their public API terms).
Meaning prose and editorial summary — Wikipedia article extracts, licensed under CC BY-SA 3.0 .
Predicted nationality distribution — Nationalize.io .
Phonetically similar names — Datamuse .

Peek a Name aggregates and presents the above data for informational purposes. Statistical predictions and external attributions are clearly labelled where shown; we make no guarantee of accuracy beyond what each source provides.