Leonora Ainsworth (also known as Leonora Dowlan) was an American "scenarist" or screenwriter for studio films produced at various locations in California during the silent era. She collaborated extensively with her husband William C. Dowlan, an actor who also directed motion pictures for Universal Film Manufacturing Company in Los Angeles and for the American Film Company at its facilities in Santa Barbara. Ainsworth is credited as a screenwriter with researching and developing storylines, composing scripts, and writing and editing the intertitles for many of the films that Dowlan directed, especially those released by Universal between 1915 and mid-1916.