At the Academy Awards, Sidney Poitier becomes the first African-American man to win the Best Actor award for the 1963 film Lilies of the Field.

The 36th Academy Awards, honoring the best in film for 1963, were held on April 13, 1964, hosted by Jack Lemmon at the Santa Monica Civic Auditorium in Santa Monica, California. This ceremony introduced the category for Best Sound Effects, with It's a Mad, Mad, Mad, Mad World being the first film to win the award.

Sidney Poitier was a Bahamian-American actor, film director, activist, and diplomat. In 1964, he was the first black actor and first Bahamian to win the Academy Award for Best Actor. Among his other accolades are two competitive Golden Globe Awards, a BAFTA Award and a Grammy Award, in addition to nominations for two Emmy Awards and a Tony Award. In 1999, he was ranked number 22 among the "American Film Institute's 100 Stars". Poitier was one of the last surviving stars from the Golden Age of Hollywood.

African Americans, also known as Black Americans and formerly called Afro-Americans, are an American racial and ethnic group who as defined by the United States census, consists of Americans who have ancestry from "any of the Black populations of Africa". African Americans constitute the second largest racial and ethnic group in the U.S. after White Americans. The term "African American" generally denotes descendants of Africans enslaved in the United States. According to annual estimates from the U.S. Census Bureau, as of July 1, 2024, the Black population was estimated at 42,951,595, representing approximately 12.63% of the total U.S. population.

The Academy Award for Best Actor is an award presented annually by the Academy of Motion Picture Arts and Sciences (AMPAS). It has been awarded since the 1st Academy Awards to an actor who has delivered an outstanding performance in a leading role in a film released that year. The award is traditionally presented by the previous year's Best Actress winner. However, in recent years, it has shifted towards being presented by previous years' Best Actor winners instead.