The chief of defence is the highest ranked commissioned officer of a nation's armed forces.
Chief of Defence may also refer to:
- Chief of Defence (Belgium)
- Chief of the Defence (Bulgaria)
- Chief of Defence (Denmark)
- Chief of Defence (Finland)
- Chief of Defence (Lithuania)
- Chief of Defence (Luxembourg)
- Chief of Defence (Netherlands)
- Chief of Defence (Norway)
- Chief of Defense (Zimbabwe)
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