Felix Adler (January 22, 1884 – March 25, 1963) was an American comedy film screenwriter and vaudeville performer whose career spanned over 30 years.

He started as a vaudeville actor and then became a title writer for Mack Sennett silents in the early 1920s, easing into talkies with three Harold Lloyd features and as a staff writer for the Columbia Pictures Short Subject department, a position he held until its demise in 1957.

A resident of Hollywood Hills, he was sociable, chatting with neighbors at the Beachwood Village Laundry and giving pocket money to local children.

Adler died of abdominal cancer at the Motion Picture & Television Country House and Hospital in Woodland Hills, California, on March 25, 1963.

Adler was cremated; his ashes are interred at the Chapel of the Pines Crematory in Los Angeles, with services privately held by his family.