Michael O'Hara the Fourth
- Taon: 1972
- Bansa: United States of America
- Genre: Crime, Comedy, Family, Mystery, TV Movie
- Studio: Walt Disney Productions
- Keyword: amateur detective, kid detectives
- Direktor: Robert Totten, Erven Jourdan
- Cast: Dan Dailey, Jo Ann Harris, Michael McGreevey, Nehemiah Persoff, James Almanzar, Mike Henry