Donald Duck's 50th Birthday is a television special broadcast on The Magical World of Disney on November 13, 1984 on CBS. As the title suggests, it was produced to celebrate the 50th anniversary of the Donald Duck character, who first appeared in the Walt Disney short The Wise Little Hen in 1934.

Donald is shown in both animated and live costumed form, interacting with emcee Dick Van Dyke and other cast members. The film not only shows Donald's life, but also depicts an extensive international tour that Donald went on in 1984. Various celebrities of the day send Donald birthday greetings, including Ed Asner, Andy Warhol, Donna Summer and the Star Wars droids. The tour culminates in a parade in Donald's honor at Disneyland.

This was the last time Clarence Nash voiced Donald Duck before his death a year later. It was rebroadcast on Disney Channel Europe on November 13, 2004 to celebrate the 20th anniversary of the special plus at the end of the special, it has the sign: "Walt Disney 1901–1966 Clarence Nash 1904–1985".