This is an overview of 1923 in film, including significant events, a list of films released and notable births and deaths.

The top eight films released in 1923 by U.S. gross are as follows:

• April 4 – Warner Bros. Pictures Inc. incorporated in the United States.
• April 15 – Lee De Forest demonstrates the Phonofilm sound-on-film system at the Rivoli Theater in New York with a series of short musical films featuring vaudeville performers.
• Henry Roussel's Les Opprimés is released, introducing mattes (painted by W. Percy Day) to French cinema.
• October 16 – Brothers Walt and Roy O. Disney establish Disney Brothers Studio (later to be known as Walt Disney Productions).

American films unless stated otherwise

• Charlie Chaplin (1914–23)
• Buster Keaton (1917–41)
• Laurel and Hardy (1921–43)
• Our Gang (1922–44)

• Felix the Cat (1919–36)
• Koko the Clown (1919–34)
• Aesop's Film Fables (1921–34)
• Alice Comedies
  • Alice's Wonderland
• The Red Head Comedies (1923).

• January 1 – Valentina Cortese, Italian actress (died 2019)
• January 3 - Bud Tingwell, Australian actor (died 2009)
• January 5 - Boris Leskin, Soviet-American actor (died 2020)
• January 7 – Pinkas Braun, Swiss actor, director (died 2008)
• January 8 – Larry Storch, American actor (died 2022)
• January 17 - Carol Raye, British-born Australian actress, comedian and singer (died 2022)
• January 19 – Jean Stapleton, American actress (died 2013)
• January 22 - Diana Douglas, American actress (died 2015)
• January 23 – Silvano Campeggi, Italian poster designer (died 2018)
• January 26 – Anne Jeffreys, American actress (died 2017)
• January 29 – Paddy Chayefsky, American screenwriter (died 1981)
• February 2 – Bonita Granville, American actress (died 1988)
• February 12 – Franco Zeffirelli, Italian director (died 2019)
• February 18 - Allan Melvin, American actor and impressionist (died 2008)
• February 21 – Lola Flores, Spanish actress (died 1995)
• February 28 – Charles Durning, American actor (died 2012)
• March 10 – Dolores Fuller, American actress (died 2011)
• March 12 - Vladek Sheybal, Polish character actor, singer and director (died 1992)
• March 19 – Pamela Britton, American actress (died 1974)
• March 24 - Murray Hamilton, American actor (died 1986)
• April 2 – Gloria Henry, American actress (died 2021)
• April 4
  • Gene Reynolds, American actor, producer (died 2020)
  • Peter Vaughan, English character actor (died 2016)
• April 5 - Michael V. Gazzo, American actor (died 1995)
• April 6 - Chang Feng, Chinese actor (died 2022)
• April 12 – Ann Miller, American dancer, singer, actress (died 2004)
• April 13 - Don Adams, American actor, comedian and director (died 2005)
• April 17
  • Lindsay Anderson, British director and actor (died 1994)
  • Lon McCallister, American actor (died 2005)
• April 28 – Adele Mara, American actress (died 2010)
• April 29 - Irvin Kershner, American director, actor and producer (died 2010)
• May 4 – Eric Sykes, British actor and comedian (died 2012)
• May 7 – Anne Baxter, actress (died 1985)
• May 14 – Mrinal Sen, Bengali director (died 2018)
• May 20 – Edith Fellows, American actress (died 2011)
• May 26
  • James Arness, American actor (died 2011)
  • Roy Dotrice, British actor (died 2017)
• May 30 - Jimmy Lydon, American actor and producer (died 2022)
• June 5 - Peggy Stewart, American actress (died 2019)
• June 8 – Peggy Maley, American actress (died 2007)
• June 12 – Herta Elviste, Estonian actress (died 2015)
• June 18 - Robert Ellenstein, American actor (died 2010)
• June 20 - Jerzy Nowak, Polish actor (died 2013)
• June 28 - Ray Boyle, American actor (died 2022)
• July 6 – Cathy O'Donnell, American actress (died 1970)
• July 8 - Val Bettin, American actor (died 2021)
• July 14 – Dale Robertson, American actor (died 2013)
• July 18 – Michael Medwin, English actor and producer (died 2020)
• July 22 – Mukesh, Indian singer (died 1976)
• July 25
  • Estelle Getty, American actress and comedian (died 2008)
  • Allan Lurie, American voice actor (died 2015)
• August 3 – Jean Hagen, American actress (died 1977)
• August 9 - John Stephenson, American actor (died 2015)
• August 10
  • Rhonda Fleming, American actress (died 2020)
  • Vernon Washington, American character actor (died 1988)
• August 14 – Alice Ghostley, American actress (died 2007)
• August 15 – Rose Marie, American actress, singer (died 2017)
• August 24 - June Dayton, American actress (died 1994)
• August 28 - Alexander Doré, British actor, director and screenwriter (died 2002)
• August 29 – Richard Attenborough, English actor and director (died 2014)
• August 31 - Ed Grady, American actor (died 2012)
• September 7 – Peter Lawford, British-American actor (died 1984)
• September 9 - Cliff Robertson, American actor (died 2011)
• September 11 - Betsy Drake, American actress, writer (died 2015)
• September 23
  • Margaret Pellegrini, American actress (died 2013)
  • Jimmy Weldon, American actor, ventriloquist and television host (died 2023)
• September 27
  • Tony Giorgio, American actor (died 2012)
  • Mary McCarty, American actress (died 1980)
• September 28 - William Windom, American actor (died 2012)
• October 1 – Kim Yaroshevskaya, Russian-born Canadian actress
• October 4 – Charlton Heston, American actor (died 2008)
• October 5 – Glynis Johns, British actress (died 2024)
• October 10 - Patrick Jordan, British actor (died 2020)
• October 16 – Linda Darnell, American actress (died 1965)
• October 23 - Frank Sutton, American actor (died 1974)
• November 12 - Richard Venture, American actor (died 2017)
• November 13 – Linda Christian, Mexican-American actress (died 2011)
• November 21 - Helen Horton, American actress (died 2007)
• November 28
  • Gloria Grahame, American actress (died 1981)
  • James Karen, American actor (died 2018)
• December 10 – Harold Gould, American actor (died 2010)
• December 11 – Betsy Blair, American actress (died 2009)
• December 12 - Bob Barker, American retired television game show host (died 2023)
• December 29
  • Dina Merrill, American actress (died 2017)
  • Mike Nussbaum, American actor and director (died 2023)

• January 18 – Wallace Reid, American actor (born 1892)
• March 3 – Dante Testa, Italian actor and director (born 1861)
• March 26 – Sarah Bernhardt, French actress (born 1844)
• May 21 – Charles Kent, veteran actor and director (born 1852)
• June 11 – Porter Strong, American silent film actor
• June 17 – Macey Harlam, screen actor (born 1873)
• July 12 – Harry Lonsdale, stage and screen actor (born 1865)
• July 30 – Charles Hawtrey, veteran British actor (born 1858)
• August 29 – Bernard Durning, American actor and director, (born 1893)
• September 11 – Siegmund Lubin, American motion picture pioneer (born 1851)
• September 26 – Jerome Patrick, Broadway stage and silent film leading man (born 1883)
• October 28 – Joe Roberts, American actor (born 1871)
• November 20 – Allen Holubar, American actor and director (born 1888)
• November 30 – Martha Mansfield, American actress (born 1899)
• December 28 – Frank Hayes, American actor and comedian (born 1871)

• Jean Arthur – Cameo Kirby
• Mary Carlisle – Long Live the King
• Marlene Dietrich – The Little Napoleon
• Charles Farrell – The Cheat
• Leslie Fenton – Gentle Julia
• James Hall – Man Alone
• Carmencita Johnson – The Courtship of Miles Standish
• Helen Mack – Success
• June Marlowe – Fighting Blood
• Ken Maynard – Brass Commandments
• Donald Meek – Six Cylinder Love
• Thomas Mitchell – Six Cylinder Love
• Jack Oakie – His Children's Children
• Marjorie Reynolds – Trilby
• Stanley Ridges – Success
• Erika von Thellmann – The Stone Rider