Hieronymus Heyerdahl was a Norwegian lawyer, administrator and politician for the Conservative Party. He served as mayor of Oslo and was associated with the development of the new Oslo City Hall.
- Occupation
- politician, lawyer, jurist, lawyer with the right to appear before the Norwegian Supreme Court
- Position held
- mayor of Oslo
- Citizenship
- Norway
- Born
- May 5, 1867
- Died
- January 13, 1959