Oscar for beste originalmusikk

Oscar for beste originalmusikk (på engelsk Academy Award for Original Music Score) er en Oscarpris som blir tildelt den komponist med best filmmusikk året før.
 Komponister med flere nominasjoner 

 9: Alfred Newman (43)
 5: John Williams (44)
 4: Johnny Green (12)
 4: André Previn (11)
 4: John Barry (6)
 4: Alan Menken (5)
 3: Max Steiner (24)
 3: Ray Heindorf (17)
 3: Morris Stoloff (17)
 3: Miklós Rózsa (16)
 3: Dimitri Tiomkin (14)
 3: Maurice Jarre (8)
 3: Ken Darby (6)
 3: Roger Edens (6)
 3: Saul Chaplin (5)
 3: Adolph Deutsch (5)
 2: Franz Waxman (11)
 2: Henry Mancini (7)

 2: Lennie Hayton (6)
 2: Michel Legrand (6)
 2: Irwin Kostal (5)
 2: Marvin Hamlisch (4)
 2: Leonard Rosenman (4)
 2: Ralph Burns (3)
 2: Howard Shore (3)
 2: Gustavo Santaolalla (2)
 1: Jerry Goldsmith (17)
 1: Victor Young (17)
 1: Herbert Stothart (11)
 1: Elmer Bernstein (10)
 1: Hugo Friedhofer (9)
 1: Lionel Newman (9)
 1: Georgie Stoll (9)
 1: Hans Zimmer (9)
 1: James Horner (8)
 1: Leigh Harline (7)

 1: Charles Previn (7)
 1: Paul J. Smith (7)
 1: Dave Grusin (6)
 1: Leslie Bricusse (5)
 1: Georges Delerue (5)
 1: Richard Hageman (5)
 1: Bernard Herrmann (5)
 1: Nelson Riddle (5)
 1: Oliver Wallace (5)
 1: Aaron Copland (4)
 1: Leo F. Forbstein (4)
 1: Richard M. Sherman (4)
 1: Robert B. Sherman (4)
 1: Louis Silvers (4)
 1: Frank Churchill (3)
 1: Ernest Gold (3)
 1: Elliot Goldenthal (3)

 1: Erich Wolfgang Korngold (3)
 1: Bronislau Kaper (3)
 1: Dario Marianelli (3)
 1: Rachel Portman (3)
 1: Stephen Schwartz (3)
 1: Harry Sukman (3)
 1: Gabriel Yared (3)
 1: John Addison (2)
 1: Luis Enríquez Bacalov (2)
 1: Robert Russell Bennett (2)
 1: Jay Blackton (2)
 1: John Corigliano (2)
 1: Michael Giacchino (2)
 1: Michael Gore (2)
 1: W. Franke Harling (2)
 1: A. R. Rahman (2)
 1: Heinz Roemheld (2)
 1: Leo Shuken (2)

 Liste 
 2000-tallet 
 2000 Crouching Tiger, Hidden Dragon – Tan Dun
 Chocolat - Rachel Portman
 Gladiator - Hans Zimmer
 Malèna - Ennio Morricone
 Patrioten - John Williams

 2001 Ringenes Herre: Ringens brorskap – Howard Shore
 A.I. - Artificiell Intelligens - John Williams
 A Beautiful Mind - James Horner
 Harry Potter og de vises stein - John Williams
 Monsterbedriften - Randy Newman

 2002 Frida – Elliot Goldenthal
 Catch Me If You Can - John Williams
 Far from Heaven - Elmer Bernstein
 The Hours - Philip Glass
 Road to Perdition - Thomas Newman

 2003 Ringenes herre: Atter en konge – Howard Shore
 Big Fish - Danny Elfman
 Cold Mountain - Gabriel Yared
 Oppdrag Nemo - Thomas Newman
 House of Sand and Fog - James Horner

 2004 Finding Neverland – Jan A. P. Kaczmarek
 Harry Potter og fangen fra Azkaban - John Williams
 En serie uheldige hendelser - Thomas Newman
 The Passion of the Christ - John Debney
 The Village - James Newton Howard
 8 Mile-Eminem
 2005 Brokeback Mountain – Gustavo Santaolalla
 Geisha - John Williams
 The Constant Gardener - Alberto Iglesias
 Stolthet og fordom - Dario Marianelli
 München - John Williams

 2006 Babel – Gustavo Santaolalla
 The Good German - Thomas Newman
 Notes on a Scandal - Philip Glass
 Pans labyrint - Javier Navarrete
 The Queen - Alexandre Desplat

 2007 Om forlatelse – Dario Marianelli
 Drageløperen - Alberto Iglesias
 Michael Clayton - James Newton Howard
 Rottatouille - Michael Giacchino
 3:10 to Yuma - Marco Beltrami

 2008 Slumdog Millionaire – A. R. Rahman
 Den fantastiske historien om Benjamin Button - Alexandre Desplat
 Defiance - James Newton Howard
 WALL-E - Thomas Newman
 Milk - Danny Elfman

 2009 Se opp – Michael Giacchino
 Avatar - James Horner
 Den fantastiske Mikkel Rev - Alexandre Desplat
 The Hurt Locker -  Marco Beltrami och Buck Sanders
 Sherlock Holmes - Hans Zimmer

 2010-tallet 
 2010 The Social Network – Trent Reznor, Atticus Ross
 127 timer - A.R. Rahman
 Dragetreneren - John Powell
 Inception - Hans Zimmer
 Kongens tale - Alexandre Desplat

 2011 The Artist – Ludovic Bource
På eventyr med Tintin: Enhjørningens hemmelighet – John Williams
Hugo Cabret – Howard Shore
Muldvarpen – Alberto Iglesias
War Horse – John Williams

 2012 Historien om Pi – Mychael Danna
 Anna Karenina – Dario Marianelli
 Operasjon Argo – Alexandre Desplat
 Lincoln – John Williams
 Skyfall – Thomas Newman

 2013 Gravity – Steven Price
 Boktyven – John Williams
 Her – William Butler and Owen Pallett
 Philomena – Alexandre Desplat
 Saving Mr. Banks – Thomas Newman

Originalmusikk