Koji

koji or kōji may refer to:

• Koji, the common name of the fungus Aspergillus oryzae
• Koji Ishikawa (illustrator) (いしかわこうじ, born 1963), picture-book author and illustrator
• Koji Kondo (born 1960), composer of video game music
• Koji Minamoto, character from Digimon Frontier
• Koji Sawai (born 1952), anime director
• Kōji Seto (born 1988), Japanese actor
• Koji Shimizu (born 1969), long-distance runner
• Kōji Tamaki (born 1958), lead singer of the band Anzen Chitai (安全地帯)
• Kōji Totani (1948–2006), voice actor
• Koji (Ōban), a character from the series Ōban Star-Racers
• Koji (cosmetics), a Japanese cosmetics brand

In Japan: Kōji may refer to:

• Kōji (Heian period) (康治), Japanese era, 1142–1144
• Kōji (Muromachi period) (弘治), Japanese era, 1555–1558

See also

• Kojii, music project by Kojii Helnwein
• Kouji
• Coji-Coji (コジコジ), an anime series (sometimes romanized "Koji Koji")