Enola Holmes is a 2020 mystery film starring Millie Bobby Brown as the title character, the teenage sister of the already famous Victorian-era detective Sherlock Holmes. The film is directed by Harry Bradbeer from a screenplay by Jack Thorne that adapts the first novel in The Enola Holmes Mysteries series by Nancy Springer. In the film, Enola travels to London to find her missing mother but ends up on a thrilling adventure, pairing up with a runaway lord as they attempt to solve a mystery that threatens the entire country. In addition to Brown, the film also stars Sam Claflin, Henry Cavill, and Helena Bonham Carter.

Filming began in July 2019. Originally planned for a theatrical release by Warner Bros. Pictures, the distribution rights to the film were picked up by Netflix due to the COVID-19 pandemic. Enola Holmes was released on September 23, 2020. The film received positive reviews from critics, who praised Brown's performance. It became one of the most-watched original Netflix film releases, with an estimated 76 million households watching the film over its first four weeks. A sequel, Enola Holmes 2, was released on Netflix on November 4, 2022.