The 91st Academy Awards ceremony, presented by the Academy of Motion Picture Arts and Sciences (AMPAS), honored the best films of 2018 and took place on February 24, 2019, at the Dolby Theatre in Hollywood, Los Angeles. During the ceremony, AMPAS presented Academy Awards in 24 categories. The ceremony was televised in the United States by the American Broadcasting Company (ABC) and was produced by Donna Gigliotti and Glenn Weiss, with Weiss also serving as director. This was the first telecast to have no host since the 61st ceremony held in 1989.

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.