The nominees for the 83rd Academy Awards were announced on January 25, 2011, at the Samuel Goldwyn Theater in Beverly Hills, California, by Tom Sherak, president of the Academy, and actress Mo'Nique. Films receiving the most nominations were The King's Speech with twelve, followed by True Grit with ten. The winners were announced during the awards ceremony on February 27, 2011.
Academy Awards of Merit were presented in 24 competitive categories. In each category, award winners are  highlighted in boldface, followed by the remaining nominees.

• Best motion picture of the year
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    * Black Swan
    * The Fighter
    * Inception
    * The Kids Are All Right
    * The King's Speech
    * 127 Hours
    * The Social Network
    * Toy Story 3
    * True Grit
    * Winter's Bone


Performance by an actor in a leading role

    * Javier Bardem in "Biutiful"
    * Jeff Bridges in "True Grit"
    * Colin Firth in "The King's Speech"
    * Jesse Eisenberg in "The Social Network"
    * James Franco in "127 Hours

Performance by an actor in a supporting role

    * Christian Bale in "The Fighter"
    * John Hawkes in "Winter's Bone"
    * Jeremy Renner in "The Town"
    * Mark Ruffalo in "The Kids Are All Right"
    * Geoffrey Rush in "The King's Speech"


Performance by an actress in a leading role

    * Annette Bening in "The Kids Are All Right"
    * Nicole Kidman in "Rabbit Hole"
    * Jennifer Lawrence in "Winter's Bone"
    * Natalie Portman in "Black Swan"
    * Michelle Williams in "Blue Valentine"

Performance by an actress in a supporting role

    * Amy Adams in "The Fighter"
    * Helena Bonham Carter in "The King's Speech"
    * Melissa Leo in "The Fighter"
    * Hailee Steinfeld in "True Grit"
    * Jacki Weaver in "Animal Kingdom"

Best animated feature film of the year

    * How to Train Your Dragon
    * The Illusionist
    * Toy Story 3


Art Direction

    * Alice in Wonderland
    * Harry Potter and the Deathly Hallows Part 1
    * Inception
    * The King's Speech
    * True Grit


Achievement in Cinematography

    * Black Swan
    * Inception
    * The King's Speech
    * The Social Network
    * True Grit

Achievement in costume design

    * Alice in Wonderland
    * I Am Love
    * The King's Speech
    * The Tempest
    * True Grit

Achievement in directing

    * Black Swan  Darren Aronofsky
    * The Fighter  David O. Russell
    * Tom Hooper The King's Speech 
    * The Social Network  David Fincher
    * True Grit Joel Coen and Ethan Coen


Best Documentary Feature

    * Exit through the Gift Shop
    * Gasland
    * Inside Job
    * Restrepo
    * Waste Land


Best documentary short subject

    * Killing in the Name
    * Poster Girl
    * Strangers No More
    * Sun Come Up
    * The Warriors of Qiugang


Achievement in film editing

    * Black Swan
    * The Fighter
    * The King's Speech
    * 127 Hours
    * The Social Network

Best foreign language film of the year

    * Biutiful Mexico
    * Dogtooth Greece
    * In a Better World Denmark
    * Incendies Canada
    * Outside the Law (Hors-la-loi) Algeria


Achievement in makeup

    * Barney's Version
    * The Way Back
    * The Wolfman


Achievement in music written for motion pictures (Original score)

    * How to Train Your Dragon
    * Inception
    * The King's Speech
    * 127 Hours
    * The Social Network


Achievement in music written for motion pictures (Original song)

    * Coming Home from Country Strong
    * I See the Light from Tangled
    * If I Rise from 127 Hours
    * We Belong Together from Toy Story 3

Best animated short film

    * Day & Night
    * The Gruffalo
    * Let's Pollute
    * The Lost Thing
    * Madagascar, carnet de voyage

Best live action short film

    * The Confession
    * The Crush
    * God of Love
    * Na Wewe
    * Wish 143

Achievement in sound editing

    * Inception
    * Toy Story 3
    * Tron: Legacy
    * True Grit
    * Unstoppable


Achievement in sound mixing

    * Inception
    * The King's Speech
    * Salt
    * The Social Network
    * True Grit

Achievement in visual effects

    * Alice in Wonderland
    * Harry Potter and the Deathly Hallows Part 1
    * Hereafter
    * Inception
    * Iron Man 2


Adapted screenplay

    * 127 Hours
    * The Social Network
    * Toy Story 3
    * True Grit
    * Winter's Bone


Original screenplay

    * Another Year
    * The Fighter
    * Inception
    * The Kids Are All Right
    * The King's Speech