Johann Georg Mönckeberg was a Hamburg politician, who served as First Mayor of Hamburg in 1890, 1893, 1896, 1899, 1902, 1904–1905, and 1908.
- Occupation
- politician, mayor, lawyer
- Position held
- mayor, member of the Hamburg Bürgerschaft, senator
- Citizenship
- German Reich, Hamburg
- Born
- August 22, 1839
- Died
- March 27, 1908