The following is a list of events, premieres, releases, cancellations, series endings, and other business ventures for Nickelodeon in 2020.
- January 20 - The Adventures of Paddington (official premiere)
- January - Adventures in Wonder Park
- Avatar: The Last Airbender (live-action series) (Netflix)
- Santiago of the Seas
- Glitch Techs (Netflix)
- Kamp Koral
- It's Pony
- Counting Stars
- Netflix Squidward Show
- February 25 - The Legend of Korra: Ruins of the Empire - Part Three
- January 20 - Shimmer and Shine: Splash into Zahramay Oceanea
- February 4 - Rise of the Teenage Mutant Ninja Turtles: Mutant Mania
- February 18 - Avatar: The Last Airbender: The Complete Series (Steelbook edition)
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