The 78th Academy Awards presented by the Academy of Motion Picture Arts and Sciences (AMPAS), took place on March 5, 2006, at the Kodak Theatre in Hollywood, Los Angeles beginning at 5:00 p.m. PST / 8:00 p.m. EST. The ceremony was scheduled one week later than usual to avoid a clash with the 2006 Winter Olympics. During the ceremony, AMPAS presented Academy Awards in 24 categories honoring films released in 2005. The ceremony, televised in the United States by ABC, was produced by Gil Cates and directed by Louis J. Horvitz. Actor Jon Stewart hosted the show for the first time. Two weeks earlier in a ceremony at The Beverly Hilton in Beverly Hills, California held on February 18, the Academy Awards for Technical Achievement were presented by host Rachel McAdams.

The Academy Awards of Merit, commonly known as the Oscars or Academy Awards, are awards for artistic and technical merit for the film industry. They are presented annually by the Academy of Motion Picture Arts and Sciences (AMPAS) in the United States, in recognition of excellence in cinematic achievements as assessed by the Academy's voting membership. The Oscars are widely considered to be the most prestigious awards in the film industry.