Toaru Majutsu no Index could refer to:
- Toaru Majutsu no Index (light novel): The original light novel series by Kamachi Kazuma.
- Toaru Majutsu no Index (manga): The manga adaptation of the light novels, by Kogino Chuuya.
- Toaru Majutsu no Index (anime): The anime adaptation of the light novels, by J.C.Staff.
- Toaru Majutsu no Index (PSP game): The fighting video game based on Toaru Majutsu no Index Universe, by ASCII MediaWorks.
- Toaru Majutsu no Index (Mobile MMO): The MMO video game based on Toaru Majutsu no Index Universe, by NetEase Games.