| Post: | Chief |
| Body: | the Defence |
| Native Name: | Началник на отбраната Načalnik na Otbranata |
| Insignia: | Logo of Ministry of Defense of Bulgaria.svg |
| Insigniasize: | 150px |
| Insigniacaption: | Coat of arms of the Bulgarian Armed Forces |
| Incumbent: | Admiral |
| Incumbentsince: | 30 March 2020 |
| Department: | Bulgarian Armed Forces |
| Reports To: | Minister of Defence |
| Appointer: | President of Bulgaria |
| Formation: | 9 September 1885 |
| First: | Captain Racho Petrov |
The Chief of the Defence (Bulgarian: Началник на отбраната|Načalnik na Otbranata), until 2009 the Chief of the General Staff (Bulgarian: Началник на Генерален щаб /),[1] is the principal head of the Bulgarian Armed Forces. The chief is appointed by the President of Bulgaria, who is the commander-in-chief. The position dates back to the Principality of Bulgaria. The current Chief of the Defence is Admiral Emil Eftimov.