Principal Secretary
- Chief Secretary (disambiguation)
- Chief of Staff to the Prime Minister (disambiguation)
- Chief of staff
- General secretary
- Permanent secretary
- Principal Private Secretary
- Principal Secretary (Canada)
- Principal Secretary (India)
- Principal Secretary to Chief Minister
- Principal Secretary to the President of Pakistan
- Principal Secretary to the Prime Minister of Bangladesh
- Principal Secretary to the Prime Minister of India
- Principal Secretary to the Prime Minister of Pakistan
- Provincial secretary