The Intrusion of Isabel is a 1919 American silent comedy film directed by Lloyd Ingraham and starring Mary Miles Minter, J. Parks Jones, Allan Forrest, and Lucretia Harris. As with many of Minter's features, it is thought to be a lost film.

Plot

As described in various film magazine reviews, Isabel Trevor (Minter) and her brother Bert (Jones), left penniless after the death of their father, sell their Southern home and move to New York, along with their servant Mammy Johnson (Harris). Bert finds work as a valet to Jack Craig (Forrest), but as he does not want his sister to know that he is working as a servant, he tells Isabel that he and Craig are equal partners in a business.