Paperback, Novel Series Beginning with J
- J.League
- Jaku-chara Tomozaki-kun
- Japan National Soccor Team
- Jeeves Series
- Jewel Pet
- Jigoku Sensei Nube
- Jigoku Shojo
- Jikken Keiji Totori
- Jiko Keisatsu
- Jin
- Jinrui ha Suitai Shimashita
- Jinsei
- Jitensha Seikatsu
- Jiu
- JoJo's Bizarre Adventures
- Joker Game
- JORAN THE PRINCESS OF SNOW AND BLOOD
- Jotei
- Jozee, the Tiger and the Fish (Joze to Tora to Sakana tachi)
- Judge - Shima no Saibankan Funsenki
- Jujutsu Kaisen
- Jump-kei Magazine
- Juni Taisen
- Junjo Romantica
- Juo Mujin no Fafnir
- Juousei
- Just Because!
- Juyo Sankonin Tantei
- Jyuui Dolittle
- Jyuzaengi
- The James Bond Series
- Unit Pandora, The Next