Ichijō (一条 or 一條) literally means first street in Japanese. It can refer to:

• Emperor Ichijō (一条天皇 -tennō), the 66th Emperor of Japan (980–1011)

• The Ichijō family (一条家 -ke), one of the five regent houses (go-sekke) of the Fujiwara clan in Japan
• Kazuya Ichijō, a Japanese voice actor

• Kaoru Ichijou of Kamen Rider Kuuga
• Mashiro Ichijō of After School Nightmare.
• Hikaru Ichijō of the Super Dimension Fortress Macross.
• Ichijō of Pani Poni
• Eika Ichijō of Sky Girls
• Sumireko Ichijō and Kaoruko Ichijō of Futakoi
• Takuma Ichijō of Vampire Knight
• Kou Ichijō of Persona 4
• Haruhiko Ichijō of Myriad Colors Phantom World
• Hotaru Ichijō of Non Non Biyori
• Supreme Commander Ichijō of Choujin Sentai Jetman
• Ryōma Ichijō of Love Stage!!
• Raku Ichijō of Nisekoi
• Ichijō Ayane of Full Metal Daemon: Muramasa (“Ichijō” being used as a given name)
• Aoi Ichijō of High School Prodigies Have It Easy Even in Another World

• Ichijō Street (一条通, -dori), one of numbered east–west streets in the ancient capital of Heian-kyō, present-day Kyoto