Michael O'Hara the Fourth
- annos singulos: 1972
- Patriam: United States of America
- genus: Crime, Comedy, Family, Mystery, TV Movie
- Studio: Walt Disney Productions
- keyword: amateur detective, kid detectives
- Director: Robert Totten, Erven Jourdan
- cast: Dan Dailey, Jo Ann Harris, Michael McGreevey, Nehemiah Persoff, James Almanzar, Mike Henry