First Name
in the U.S.
since 1880
Last Name
in the U.S.
in 2010
On This Page

How to Pronounce Koji

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Meaning and Origin

What does the name Koji mean? Find out below.

Origin and Meaning of Koji

User Submitted Meanings

  • According to a user from Nigeria, the name Koji is of Nigerian origin and means "Fifth child".
  • A submission from Kentucky, United States says the name Koji means "Filial ruler or happy second son in Japanese. Rough Japanese translation for supreme ruler or baby tiger, depending on the lanki symbol used and the context when used" and is of Japanese origin.
Other origins: African

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International Interest

From Japanese (kōji, “yeast”).

  1. A mold, Aspergillus oryzae, used in the manufacture of miso, amasake, sake, etc.

koji was also found in the following language(s): Japanese and Serbo-Croatian

Notable Persons Named Koji

Koji Kondo is a chiptune and video game music musician. He plays Piano. His most notable accomplishments were from 1983 to present. Koji was born on August 13th, 1961 in Nagoya, Aichi, Japan.


Koji Uehara is a baseball player for the Boston Red Sox. Koji was born on April 3rd, 1975 in Neyagawa, Osaka.


Kōji Wada is a musician. Their most notable accomplishments were from 1999 to present. Kōji was born on January 24th, 1974 in Kyoto, Japan.


Koji Igarashi is a video game designer. Koji was born on March 17th, 1968.


Koji Yamamoto is an actor. He has had major accomplishments since 1976. Koji was born on October 31st, 1976 in Tokyo.


Koji Suzuki is a horror fiction, thriller (genre), fantasy, and science fiction writer. He has had major accomplishments since 1990. Koji was given the name Suzuki Kōji on May 13th, 1957 in Hamamatsu, Japan.


Notable Persons With the Last Name Koji

Takanohana Kōji is a sumo wrestler. Takanohana was born on August 12th, 1972 in Suginami, Tokyo, Japan.


Yusa Kōji is a voice actor, singer, and voice acting. Their ongoing career started in 1995. Yusa was born on August 12th, 1968 in Kyoto Prefecture, Japan.


Futahaguro Kōji is a sumo wrestler. Futahaguro was born on August 12th, 1963 in Tsu, Mie, Japan.


Misugisato was born on July 1st, 1962 in Shiga, Japan.


Sadanoumi was born on July 19th, 1956 in Sakai, Osaka, Japan.


Where is the name Koji popular?

International Interest for Koji

Interest is based how many people viewed this name from each country and is scaled based on the total views by each country so that large countries do not always show the most interest. Darker blue on the map indicates that people in the country are more likely to search for this name.

Longer bars in the bar graph indicate that people in the country are more interested in the name. Not all countries that have shown an interest in the name are listed in the bar graph.

United States
United Kingdom

Popularity in the US

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Popularity of Koji as a last name

The map shows the absolute popularity of the name Koji as a last name in each of the states. See other popular names in New York, Connecticut, or Hawaii.

Ethnicity Distribution

Ethnicity Koji U.S.
  White 56.88% 64.26%
  African American 25.69% 11.96%
  Asian, Hawaiian, and Pacific Islander 13.76% 4.85%
  American Indian and Alaska Native 0.00% 0.69%
  Two or More Ethnicities 0.00% 1.76%
  Hispanic or Latino 0.00% 16.26%

Of Last Name Koji

People with the last name Koji are most frequently White, African American, or Asian, Hawaiian, and Pacific Islander

Entire United States

Fun Facts about the name Koji

  • How Popular is the name Koji? Koji is the 16,992nd most popular name of all time. As a last name Koji was the 150,452nd most popular name in 2010.
  • How many people with the first name Koji have been born in the United States? From 1880 to 2017, the Social Security Administration has recorded 465 babies born with the first name Koji in the United States. That's more than enough people named Koji to occupy the territory of Pitcairn Islands (United Kingdom) with an estimated population of 66 (as of July 1, 2008).
  • What year were 5 or more babies first named Koji? The name was first given to 5 or more babies in the year 1922 when it was given as a first name to 5 new born babies.
  • When was Koji first recorded in the United States? The oldest recorded birth by the Social Security Administration for the first name Koji is Wednesday, September 20th, 1876.
  • What year had the most people named Koji born? The highest recorded use of the first name Koji was in 2016 with a total of 28 babies.
  • Random Koji Factoid: According to the 1991 U.S. Social Security Administration data, the first name Koji is not a popular baby boy's name in California. Imagine that, only 6 babies in California have the same name as you in 1991.
  • Weird things about the name Koji: Your name in reverse order is Ijok. A random rearrangement of the letters in your name (anagram) will give Jiok. How do you pronounce that?
  • How many people have the last name Koji? In 2010, the U.S. Census Bureau surveyed 109 people with the last name Koji.
  • How likely are you to meet someone with the last name of Koji? Koji is one of the most unique last names recorded.

What Kojis Have Visited This Page?

Name poster for Koji

Name poster for Koji(click to save the high quality version)

Most Popular Names

All Name Lists

  • Sources:
  • U.S. Census Bureau: Frequently Occurring Surnames from the Census 2000 (public domain).
  • U.S. Social Security Administration: Popular Baby Names, Death Master File (public domain).
  • Wiktionary: Titles and License.
  • Notable persons via Wikipedia: Titles and License. Click each image for the attribution information.