This is a list of notable events, premieres, releases, series cancellations and endings, and other business ventures for Nickelodeon in the year 2005.

ShowsEdit

SpecialsEdit

• April 23 - Nickelodeon's All That 10th Anniversary Reunion Special, hosted by Frankie Muniz

Series premieresEdit

• January 9 - Zoey 101
• February 21 - Avatar: The Last Airbender
• July 9 - Catscratch
• November 25 - The X's

Season premieresEdit

• January 24 - My Life as a Teenage Robot season 2
• February 16 - The Fairly OddParents season 5
• April 30 - All That season 10
• May 6 - SpongeBob SquarePants season 4
• May 23 - The Adventures of Jimmy Neutron: Boy Genius season 3
• June 15 - CatDog season 4, final

Series finalesEdit

• October 22 - All That

Video gamesEdit

• September 8 - Danny Phantom: The Ultimate Enemy
• October 27 - Nicktoons Unite!

BooksEdit

• January 25
  • The Great Snail Race
  • SpongeBob's Easter Parade
  • Timmy's Eggs-Ray Vision
  • UFO!
• March 22 - Bikini Bottom Riddles
• May 17 - Timmy Turner, Action Hero!
• June 28
  • Ask Angelica!
  • Coolest Girl in School
  • Cookie Crisis!
  • Singin' the Blues
  • Welcome to Fifth Grade!
• July 28 - The Nick Dictionary
• August 9 - Chuckie's Ghost
• October 4 - The Finster Who Stole Christmas

Home video releasesEdit

• January 4 - SpongeBob SquarePants: Home Sweet Pineapple (VHS and DVD)
• January 18 - The Fairly OddParents: Timmy's Top Wishes (VHS and DVD)
• January 24 - Blue's Room: It's Hug Day (VHS and DVD)
• March 1 - The SpongeBob SquarePants Movie (VHS and DVD)
• April 5 - As Told By Ginger: Far From Home (VHS and DVD)
• April 12 - Invader Zim: House Box Set (DVD)
• May 3 - Dora the Explorer: It's a Party (VHS and DVD)
• May 17
  • The Adventures of Pete & Pete: Season 1 (DVD)
  • Clarissa Explains It All: Season 1 (DVD)
• May 24
  • Nick Picks: Volume 1 (DVD)
  • SpongeBob SquarePants: Fear of a Krabby Patty (VHS and DVD)
• June 14 - The Fairly OddParents: School's Out!: The Musical (VHS and DVD)
• July 16
  • Dora the Explorer: Super Babies (VHS and DVD)
  • The Ren & Stimpy Show: Season Three and a Half-Ish (DVD)
• August 30 - The Fairly OddParents: Scary Godparents (VHS and DVD)
• September 20
  • The Ren & Stimpy Show: Season Five and Some More of Four (DVD)
  • SpongeBob SquarePants: Absorbing Favorites (VHS and DVD)
• September 27 - SpongeBob SquarePants: The Complete 3rd Season (DVD)
• October 4 - Blue's Room: Holiday Wishes (VHS and DVD)
• October 18 - Nick Picks: Volume 2 (DVD)
• November 1 - The Adventures of Pete and Pete: Season 2 (DVD)
• November 15 - SpongeBob SquarePants: Where's Gary? (VHS and DVD)

Business Edit

• November 1 - Nick GaS automates their programming, putting six shows in permanent looping timeslots.