Koji
Koji, Kōji, Kohji or Kouji may refer to:
- Kōji (given name), a masculine Japanese given name
 - Kōji (Heian period) (康治), Japanese era, 1142–1144
 - Kōji (Muromachi period) (弘治), Japanese era, 1555–1558
 - Koji orange, a Japanese citrus cultivar
 - Andrew Koji Shiraki (born 1987), singer/songwriter known as Koji
 - Koji, the software that builds RPM packages for the Fedora project
 - Koji (food), molds used to ferment food
 - Koji, an interactive content creation tool from GoMeta
 
See also
- Kojii, music project by Kojii Helnwein
 - Coji-Coji (コジコジ), an anime series sometimes romanized Koji Koji