Geraldine Leigh Chaplin (born July 31, 1944 in Santa Monica, California) is an American actress.

She was born the first child of Charlie Chaplin and his last wife Oona O'Neill (daughter of playwright Eugene O'Neill and authoress Agnes Boulton). When Chaplin was eight years old she appeared uncredited in her famous father's Limelight. Geraldine was educated in a boarding school in Switzerland. When her dream of becoming a ballet dancer ended, she followed in her father's footsteps and became an actress. Director David Lean chose her to play Tonya, the main character's devoted wife in Doctor Zhivago (1965).

Geraldine Chaplin had a 12 year relationship with Spanish director Carlos Saura, and she has starred in nine of his movies, including Cria Cuervos (1976), Elisa, Vida Mia (1977), and Mama Turns a Hundred (1979). She also appeared in several of Robert Altman's films during the 1970s.

She has two children, Shane and Oona; She married a long time companion, Chilean movie operator Patricio Castilla in 2006.

She has appeared in numerous films throughout her long career. She played the role of her own paternal grandmother Hannah Chaplin in the biographical film on her father Chaplin.

Filmography

• Los Totenwackers (2007)
• Miguel and William (2007)
• Teresa, muerte y vida (2006)
• El Orfanato (2006)
• Melissa P. (2005) 
• BloodRayne (2005)
• Oculto (2005)
• Heidi (2005)
• The Bridge of San Luis Rey (2004)
• Without Love (2004)
• Talk to Her (2002)
• The Faces of the Moon (2002)
• En la ciudad sin límites (2002)
• Just Run! (2001)
• Beresina oder Die letzten Tage der Schweiz (1999, by Daniel Schmid)
• To Walk with Lions (1999)
• Finisterre, donde termina el mundo (1998)
• Cousin Bette (1998)
• Mother Teresa: In the Name of God's Poor (1997)
• Crimetime (1996)
• Os olhos da Ásia (1996)
• Jane Eyre (1996)
• Home for the Holidays (1995) 
• Para recibir el canto de los pájaros (1995)
• Words Upon the Window Pane (1994)
• The Age of Innocence (1993)
• A Foreign Field (1993)
• Chaplin (1992)
• Hors saisons (1992, by Daniel Schmid)
• Buster's Bedroom (1991)
• The Children (1990)
• Gentille alouette (1990)
• I Want to Go Home (1989, by Alain Resnais)
• The Return of the Musketeers (1989)
• The Moderns (1988, by Alan Rudolph)
• White Mischief (1987)
• Love on the Ground (1984, by Jacques Rivette)
• Life Is a Bed of Roses (1983, by Alain Resnais)
• Casting (1982)
• Bolero (1981, by Claude Lelouch)
• The Mirror Crack'd (1980)
• Sentimental Journey (1980)
• La viuda de Montiel (1979)
• Mama Turns 100 (1979)
• Mais où et donc Ornicar (1979)
• Adoption (1979)
• A Wedding (1978, by Robert Altman)
• Blindfolded Eyes (1978)
• Remember My Name (1978, by Alan Rudolph)
• One Page of Love (1978)
• In memoriam (1977)
• Elisa, vida mía (1977, by Carlos Saura)
• Roseland (1977, by James Ivory)
• Welcome to L.A. (1976, by Alan Rudolph)
• Buffalo Bill and the Indians, or Sitting Bull's History Lesson (1976, by Robert Altman)
• Cria Cuervos (1976, by Carlos Saura)
• Noroît (1976, by Jacques Rivette)
• Scrim (1976) - Actress
• Nashville (1975, by Robert Altman) 
• The Four Musketeers (1974)
• Sommerfuglene (1974)
• ¿...Y el prójimo? (1974)
• The Three Musketeers (1973)
• Yankee Dudler (1973)
• Ana y los lobos (1973)
• Marriage a la Mode (1973)
• Innocent Bystanders (1972)
• The House Without Frontiers (1972)
• Z.P.G. (1972)
• Carlos (1971)
• Perched on a Tree (1971)
• The Garden of Delights (1970)
• The Hawaiians (1970)
• Honeycomb (1969)
• Stress Is Three (1968)
• Peppermint Frappé (1967, by Carlos Saura)
• Cop-Out (1967)
• Rasputin (1967)
• A Countess from Hong Kong (1967)
• Andremo in città (1966)
• Doctor Zhivago (1965)
• Crime on a Summer Morning (1965)
• Limelight (1952) -  (uncredited)