Events in 1903 in animation.

• April 14 - The inventor Frederic Eugene Ives receives U.S. patent 725,567 for his "parallax stereogram", the first "no glasses" autostereoscopic 3-D display technology.^[1][2][3][4] It helps introduce the animation technique of barrier-grid animation and stereography. Ives' method is then modífied by Eugène Estanave to introduce a method of animated stereoscopic photography.^[5]

• January 7: Alan Napier, English actor (voice of Sir Pellinore in The Sword in the Stone, huntsman and reporter in Mary Poppins), (d. 1988).^[6]
• January 28: Sammy Lerner, Romanian songwriter (Popeye theme), (d. 1989).

• February 16: Edgar Bergen, American actor, comedian and puppeteer (narrator in the Mickey and the Beanstalk segment in Fun and Fancy Free), (d. 1978).^[7]
• February 18: George Givot, Russian-American comedian and actor (voice of Tony in Lady and the Tramp), (d. 1984).

• May 3: Bing Crosby, American singer and actor (narrator and voice of Ichabod Crane and Brom Bones in The Adventures of Ichabod and Mr. Toad), (d. 1977).^[8]
• May 21: Sammy Timberg, American musician and composer (Fleischer Studios, Famous Studios), (d. 1992).^[9][10]
• May 29: Bob Hope, English-American comedian, vaudevillian, actor, singer and dancer (voiced himself in The Simpsons episode "Lisa the Beauty Queen"), (d. 2003).^[11][12]

• June 17: Donald W. Graham, Canadian-American animator, artist and art instructor (Walt Disney Company), (d. 1976).^{[13][14][15][16]}
• June 21: Al Hirschfeld, American caricaturist, (artistic consultant for the "Rhapsody in Blue" segment in Fantasia 2000 which was inspired by his designs), (d. 2003).^[17][18]

• July 5: Vladimir Suteev, Russian children's writer, artist, animator, film director, and screenwriter (China in Flames, Petya and Little Red Riding Hood, The Magic Store), (d. 1993).^{[19][20][21][22]}

• August 7: Rudolf Ising, American animator, film director and producer (co-founder of Warner Bros. Cartoons and the Metro-Goldwyn-Mayer cartoon studio, Looney Tunes, Merrie Melodies, Happy Harmonies) and actor (original voice of Barney Bear), (d. 1992).^[23][24][25]
• August 22: Jerry Iger, American animator (Fleischer Studios), and comics publisher, (d. 1990).^[26]
• August 31: Hugh Harman, American animator, (co-founder of Warner Bros. Cartoons and the Metro-Goldwyn-Mayer cartoon studio, Looney Tunes, Merrie Melodies, Happy Harmonies), (d. 1982).^{[27][28][29][30]}

• September 27: Robert O. Cook, American sound engineer (Walt Disney Animation Studios), (d. 1995).
• September 30: Pete Peterson, American stop motion animator and special effects artist (Mighty Joe Young, The Black Scorpion, The Giant Behemoth), (d. 1962).^[31][32][33]

• October 16: Hamilton Luske, American animator and director (Walt Disney Company), (d. 1968).^{[34][citation needed]}

• November 7:
  • Georgy Millyar, Russian voice actor (voiced the Tsar in The Humpbacked Horse, Baba Yaga in The Frog Princess, and Koshchei in Beloved Beauty), (d. 1993).^[35]
  • Grace Stafford, American actress (voice of Woody Woodpecker from 1950 to 1991) and wife of Walter Lantz, (d. 1992).^[36][37][38]

• December 4: Lazar Lagin, Soviet science fiction writer, children's writer, satirist, and screenwriter (scripted Passion of Spies), (d. 1979).^[39][40]
• December 16: Hardie Albright, American actor (voice of adolescent Bambi in Bambi), (d. 1975).^[41]

• Animated works of the year, listed in the IMDb