| Johann Georg Mönckeberg | |
| Office: | Second Mayor of Hamburg |
| Term Start: | 1 January 1889 |
| Term End: | 31 December 1889 |
| Term Start2: | 1 January 1892 |
| Term End2: | 31 December 1892 |
| Term Start3: | 1 January 1895 |
| Term End3: | 31 December 1895 |
| Term Start4: | 1 January 1898 |
| Term End4: | 31 December 1898 |
| Term Start5: | 19 November 1900 |
| Term End5: | 31 December 1901 |
| Term Start6: | 1 January 1904 |
| Term End6: | 11 July 1904 |
| Term Start7: | 1 January 1907 |
| Term End7: | 31 December 1907 |
| Predecessor: | Carl Petersen |
| Predecessor2: | Carl Petersen |
| Predecessor4: | Johannes Lehmann |
| Predecessor6: | Gerhard Hachmann |
| Predecessor7: | Johann Otto Stammann |
| Successor: | Johannes Versmann |
| Successor2: | Johannes Versmann |
| Successor3: | Johannes Versmann |
| Successor4: | Johannes Versmann |
| Successor5: | Heinrich Burchard |
| Successor6: | Heinrich Burchard |
| Successor7: | Heinrich Burchard |
| Office8: | First Mayor of Hamburg and President of the Hamburg Senate |
| Term Start8: | 1 January 1890 |
| Term End8: | 31 December 1890 |
| Term Start9: | 1 January 1893 |
| Term End9: | 31 December 1893 |
| Term Start10: | 1 January 1896 |
| Term End10: | 31 December 1896 |
| Term Start11: | 1 January 1899 |
| Term End11: | 31 December 1899 |
| Term Start12: | 1 January 1902 |
| Term End12: | 31 December 1902 |
| Term Start13: | 11 July 1904 |
| Term End13: | 31 December 1905 |
| Term Start14: | 1 January 1908 |
| Term End14: | 27 March 1908 |
| Predecessor8: | Johannes Versmann |
| Predecessor9: | Carl Petersen |
| Predecessor11: | Johannes Lehmann |
| Predecessor13: | Gerhard Hachmann |
| Predecessor14: | Johann Otto Stammann |
| Successor8: | Johannes Versmann |
| Successor9: | Johannes Versmann |
| Successor10: | Johannes Versmann |
| Successor11: | Johannes Lehmann |
| Successor12: | Heinrich Burchard |
| Successor13: | Heinrich Burchard |
| Successor14: | Heinrich Burchard |
| Birth Date: | 22 August 1839 |
| Birth Place: | Hamburg |
| Death Place: | Hamburg |
| Nationality: | German |
| Party: | Nonpartisan |
| Alma Mater: | Ruperto-Carola, Georgia Augusta |
| Occupation: | Lawyer |
Johann Georg Mönckeberg (born 22 August 1839 in Hamburg, died 27 March 1908 in Hamburg) was a Hamburg politician, who served as First Mayor of Hamburg in 1890, 1893, 1896, 1899, 1902, 1904–1905, and 1908.
He studied law at Heidelberg University and at the University of Göttingen, and worked as a lawyer in Hamburg from 1862. He was elected to the Hamburg Parliament in 1871 and became a Senator in 1876, serving until his death.
The Mönckebergstraße is named in his honour. He was married to Elise Mathilde Tesdorpf.[1] [2]