This is a list of notable events, premieres, releases, series cancellations and endings, and other business ventures for Nickelodeon in the year 1986.
- October 6 - Double Dare
- The Big Ballot (later known as the Nickelodeon Kids' Choice Awards)
- February 1 - Inspector Gadget
- February 12 - Gary LeRoi Gray is born
- April 3 - Amanda Bynes is born
- June 27 - Drake Bell is born
- July 6 - Leon Frierson is born
- August 31 - Spencer Klein is born
- September 29 - Lisa Foiles is born
- November 10 - Josh Peck is born
- November 18 - Joseph Ashton is born
- Viacom, which also owns CBS, buys MTV Networks.