The year 1955 (MCMLV) started on a Saturday.
Theatrical releases
Feature films
- January 19 - Unchained (Chino, California premiere)
- January 20 - Young at Heart (New York City premiere)
- February 1 - Battle Cry (Baltimore, Maryland premiere)
- February 2 - Battle Cry
- February 18 - New York Confidential
- February 27 - Murder Is My Beat
- April 10 - East of Eden
- April 12 - Strange Lady in Town
- June 4 - The Sea Chase
- June 18 - Tall Man Riding
- June 24 - Land of the Pharaohs
- July 10 - Mister Roberts
- July 16 - The Dam Busters
- July 31 - Pete Kelly's Blues
- September 29 - The McConnell Story
- October 1 - Blood Alley
- October 27 - Rebel Without a Cause
- October 28 - Illegal
- November 1 - Sincerely Yours
- November 9 - I Died a Thousand Times
- November 15 - Target Zero
- December 25 - Hell on Frisco Bay
- December 31 - The Court-Martial of Billy Mitchell
Shorts
Warner Bros. Cartoons
Merrie Melodies
- January 1 - Pizzicato Pussycat
- January 15 - Feather Dusted
- January 29 - Pests for Guests
- February 12 - Beanstalk Bunny
- February 26 - Stork Naked
- March 12 - Lighthouse Mouse
- May 7 - Hare Brush
- May 21 - Past Perfumance
- June 4 - Tweety's Circus
- July 9 - This Is a Life?
- August 6 - Jumpin' Jupiter
- August 20 - A Kiddies Kitty
- September 17 - Speedy Gonzales
- October 1 - Knight-Mare Hare
- October 15 - Two Scent's Worth
- December 17 - Pappy's Puppy
- December 31 - One Froggy Evening
Looney Tunes
- February 19 - All Fowled Up
- March 26 - Sahara Hare
- April 2 - Sandy Claws
- April 16 - The Hole Idea
- April 30 - Ready, Set... ZOOM!
- June 11 - Rabbit Rampage
- June 25 - Lumber Jerks
- July 23 - Double or Mutton
- August 27 - Hyde and Hare
- September 3 - Dime to Retire
- October 29 - Red Riding Hoodwinked
- November 12 - Roman Legion-Hare
- November 26 - Heir-Conditioned
- December 10 - Guided Muscle
Theme parks
Television
- September 20
- Warner Bros. Presents is premiered on ABC
- Cheyenne is premiered on ABC
People
Births
Deaths
Artists Joined
Character debuts
≪ | 1954 | Timeline | 1956 | ≫ |