| Coat of arms of Hamburg | |
|---|---|
 | |
| Versions | |
 Middle coat of arms of Hamburg | |
 Lesser coat of arms of Hamburg | |
 Admiralty coat of arms of Hamburg | |
| Armiger | Free and Hanseatic City of Hamburg |
| Crest | Three peacock feathers and six banners of the arms and a mantling Argent and Gules. |
| Shield | Gules, a castle triple-turreted Argent. |
| Supporters | Two Lions rampant reguardant Or, langued Gules. |
| Compartment | A postament Or |
| Other elements | A cross Argent atop the central turret, a six-rayed mullet Argent above each outer turret. |
| Use | The greater arms may only be used by the government of Hamburg. |
The coat of arms of Hamburg, along with the flag of Hamburg, is regulated by the constitution of Hamburg and law. The colors of Hamburg are white and red. One of the oldest versions of the castle is found on a seal in 1241.