The Hardy Boys is a very long-running and successful books series, so they have shown up a few times in other media.
Comic Books
- The Hardy Boys: Undercover Brothers Graphic Novel series
- Nancy Drew & The Hardy Boys: The Big Lie
- Nancy Drew & The Hardy Boys: The Death of Nancy Drew
- Nancy Drew & The Hardy Boys: The Case of the Missing Adults!
- Nancy Drew: The Palace of Wisdom*
Live-Action TV
- "The Mystery of the Applegate Treasure" and "The Mystery of the Ghost Farm", two serials running on the original Mickey Mouse Club in 1956 and 1957.
- The Hardy Boys/Nancy Drew Mysteries on ABC in The '70s, which they shared with Nancy Drew, starring Parker Stevenson as Frank and Shaun Cassidy as Joe. Arguably the most famous of the TV incarnations.
- The Hardy Boys, produced by Nelvana in the The '90s (one of their rare live-action projects), starring Colin Grey as Frank and Paul Popowich as Joe.
- The Mystery of the Chinese Junk, a 1967 CBS pilot that starred Tim Matheson and Rick Gates.
- The Hardy Boys (2020), a 2020 darker adaptation for Hulu.
Video Games
- Hardy Boys Adventure, a series by Dreamcatcher.
- The Hidden Theft
- The Hardy Boys: The Perfect Crime
- The Masked Phantom
- Hardy Boys, the Nintendo DS series by Her Interactive & Saga.
- Treasure on the Tracks
Western Animation
- The Hardy Boys, a 1969-1971 Saturday-Morning Cartoon series that featured the Hardys as working undercover in their own rock band, with accompanying bubblegum pop albums and a group of live actors touring. It was notable for being the first cartoon series to have an African-American character.