Academy Awards ke-78

Penghargaan Oscar ke-78 diadakan pada 5 Maret 2006 di Kodak Theatre di Hollywood, California, Amerika Serikat. Pembawa acaranya adalah Jon Stewart. Nominasinya diumumkan pada 31 Januari 2006. Film dengan nominasi terbanyak adalah Brokeback Mountain yang memperoleh 8 nominasi termasuk Film dan Sutradara Terbaik. Empat film menjadi pemenang terbanyak kategori, masing-masing tiga piala bagi Brokeback Mountain, Crash, Memoirs of a Geisha dan King Kong.

Daftar unggulan dan pemenang 
Pemenang dicetak tebal.

Film Terbaik 
 Brokeback Mountain
 Capote
 Crash
 Good Night, and Good Luck.
 Munich

Sutradara Terbaik 
 George Clooney - Good Night, and Good Luck.
 Paul Haggis - Crash
 Ang Lee - Brokeback Mountain
 Bennett Miller - Capote
 Steven Spielberg - Munich

Aktor Terbaik 
 Philip Seymour Hoffman - Capote
 Terrence Howard - Hustle & Flow
 Heath Ledger - Brokeback Mountain
 Joaquin Phoenix - Walk the Line
 David Strathairn - Good Night, and Good Luck.

Aktris Terbaik 
 Judi Dench - Mrs. Henderson Presents
 Felicity Huffman - Transamerica
 Keira Knightley - Pride & Prejudice
 Charlize Theron - North Country
 Reese Witherspoon - Walk the Line

Aktor Pendukung Terbaik 
 George Clooney - Syriana
 Matt Dillon - Crash
 Paul Giamatti - Cinderella Man
 Jake Gyllenhaal - Brokeback Mountain
 William Hurt - A History of Violence

Aktris Pendukung Terbaik 
 Amy Adams - Junebug
 Catherine Keener - Capote
 Frances McDormand - North Country
 Rachel Weisz - The Constant Gardener
 Michelle Williams - Brokeback Mountain

Film Animasi Terbaik 
 Howl's Moving Castle
 Corpse Bride
 Wallace & Gromit: The Curse of the Were-Rabbit

Film Berbahasa Asing Terbaik 
 Don't Tell (Italia)
 Joyeux Noël (Prancis)
 Paradise Now (Otoritas Palestina)
 Sophie Scholl - The Final Days (Jerman)
 Tsotsi (Afrika Selatan)

Skenario Adaptasi Terbaik 
 Brokeback Mountain
 Capote
 The Constant Gardener
 A History of Violence
 Munich

Skenario Asli Terbaik 
 Crash
 Good Night, and Good Luck.
 Match Point
 The Squid and the Whale
 Syriana

Tata Artistik Terbaik 
 Good Night, and Good Luck.
 Harry Potter and the Goblet of Fire
 King Kong
 Memoirs of a Geisha
 Pride & Prejudice

Sinematografi Terbaik 
 Wally Pfister - Batman Begins
 Rodrigo Prieto - Brokeback Mountain
 Robert Elswit - Good Night, and Good Luck.
 Dion Beebe - Memoirs of a Geisha Emmanuel Lubezki - The New World

 Desain Kostum Terbaik 
 Gabriella Pescucci - Charlie and the Chocolate Factory
 Colleen Atwood - Memoirs of a Geisha Sandy Powell - Mrs. Henderson Presents Jacqueline Durran - Pride & Prejudice Arianne Phillips - Walk the Line Film Dokumenter Terbaik 
 Darwin's Nightmare Enron: The Smartest Guys in the Room March of the Penguins Murderball Street Fight Penyuntingan Film Terbaik 
 Cinderella Man The Constant Gardener Crash Munich Walk the Line Tata Rias Terbaik 
 The Chronicles of Narnia: The Lion, the Witch and the Wardrobe Cinderella Man Star Wars Episode III: Revenge of the Sith Musik Orisinal Terbaik 
 Brokeback Mountain The Constant Gardener Memoirs of a Geisha Munich Pride & Prejudice Lagu Orisinal Terbaik 
 "In the Deep" – Crash "It's Hard Out Here for a Pimp" – Hustle & Flow "Travelin' Thru" – Transamerica Penyuntingan Suara Terbaik 
 King Kong Memoirs of a Geisha War of the Worlds Tata Suara Terbaik 
 The Chronicles of Narnia: The Lion, the Witch and the Wardrobe King Kong Memoirs of a Geisha Walk the Line War of the Worlds Efek Visual Terbaik 
 The Chronicles of Narnia: The Lion, the Witch and the Wardrobe King Kong War of the Worlds''

Penghargaan istimewa 
 Penghargaan Kehormatan: Robert Altman

Pranala luar 
 Academy Awards official website
 Academy 2006 press releases 
 Video: The First 10 Minutes of the 78th Academy Awards 

Acara Academy Awards
Peristiwa 2006