This is a list of notable events, premieres, releases, series cancellations and endings, and other business ventures for Nickelodeon in the year 1994.
- April 16 - All That airs its pilot episode; the series officially begins regularly airing on December 24th of that year.
- July 6 - Gullah Gullah Island
- October 8 - The Secret World of Alex Mack
- October 15 - My Brother and Me
- October 24 - Allegra's Window
- October 29 - Aaahh!!! Real Monsters
- December 1 - U to U
- June 6 - Legends of the Hidden Temple season 2
- September 4 - The Adventures of Pete & Pete season 2
- September 25 - Rocko's Modern Life season 2
- October 1 - The Ren & Stimpy Show season 4
- January 2 - Doug ends after four seasons. The series would later be bought by The Walt Disney Company with its parent company Jumbo Pictures.
- June 26 - Hillside ends after four seasons
- October 1 - Clarissa Explains It All ends after five seasons
- October 1 - Muppet Matinee ends.
- December 1 - SNICKtoons Xmas Gift Pack begins.
- Marvel Comics begins publishing a monthly comic book based on Rocko's Modern Life; it only lasts for seven issues.
- April - Rocko's Modern Life: Spunky's Dangerous Day
- June - The Ren & Stimpy Show: Fire Dogs
- August 9 - This is What "Na Na" Means
- January 11 - The Ren & Stimpy Show: On Duty
- January 21
- Clarissa Explains It All: Dating
- Nickelodeon Mushfest
- March 25
- Are You Afraid of the Dark?: Ghostly Tales
- Clarissa Explains It All: Take My Brother, Please!
- The Ren & Stimpy Show: In Disguise
- April 12
- Rugrats: Angelica the Divine
- Rugrats: Chuckie the Brave
- May 31
- The Adventures of Pete and Pete: Classic Petes
- Are You Afraid of the Dark?: Nightmare Tales
- Double Dare: Super Sloppiest Moments
- GUTS All-Star Special
- The Ren & Stimpy Show: More Stinky Stories
- July 26
- The Adventures of Pete & Pete: School Dazed
- Clarissa Explains It All: Enslaved by the Bell
- Doug: Cool in School
- August 21 - Nickelodeon Frightfest
- September 2 - The Ren & Stimpy Show: Classics II
- October 28
- Doug: Christmas Story
- Rugrats: The Santa Experience
- April 14 - Skyler Samuels is born
- July 1 - Dominic Lucero dies
- December 26 - Samantha Boscarino is born
Nickelodeon character debuts
- All That: Baggin' Saggin' Barry, Miss Fingerly, Randy, Mandy, Earboy, Ed
- Aaahh!!! Real Monsters: Ickis, Krumm, Oblina, The Gromble
- Rocko's Modern Life: Ralph Bighead
- Face (Nick Jr Mascot)
- Allegra's Window: Allegra, Lindi, Rondo, Riff, Mr.Cook, Sonata, Cliff, Reed, Ms.Melody, Ellington
- Gullah Gullah Island: Binyah Binyah Pollywog, The Daise Family
Behind the scenes
- May 22 - Rugrats goes on hiatus after ending production on its third season; it would resume production in 1996.