1999 (MCMXCIX) was a common year starting on Friday of the Gregorian calendar.
- The Powerpuff Girls is renewed for a second and third season.
- January 19 - Batman Beyond and The Cat & Birdy Warnernoonie Pinky Brainy Big Cartoonie Show premiere on Kids' WB
- The Big Game XXVII: Sylvester vs. Tweety airs on Cartoon Network
- September 11
- September 18 - The Sylvester & Tweety Mysteries begins airing its fifth and final season
- May 8 - Grand opening of Six Flags America. The park features Gotham City and Looney Tunes Movie Town, two new lands that feature attractions such as The Joker's Jinx, Two Face: The Flip Side, and The Great Chase.
- May 26 - Batman: The Ride opens at Six Flags Over Texas.
Home video releases
VHS & DVD releases
- March 19 - Anna Leonowens, King Mongkut, Louis Leonowens, Kralahome, Master Little, The Royal Children, Prince Chulalongkorn, Tuptim, Sir Edward Ramsay
- August 9 - Hogarth Hughes, The Iron Giant (character), Annie Hughes, Dean McCoppin, Kent Mansley, General Rogard
- September 11 - Shareena Wickett, Duncan Bubble, Jim Kim, Emmitt Roswell, Gug, Lemonjella and Orangejella LaBelle, Eugenia Kisskillya, Shelley Kelly