Joint Chiefs of Staff of the United States military

Chief of Staff of Irish Republican Army

White House Chief of Staff, the highest-ranking member of the Executive Office of the President of the United States

First Sea Lord or Chief of the Naval Staff

Chief of Staff of the United States Army

Chief of Staff of the United States Navy

Chief of the Air Staff

Chief of the Defence Staff

Chairman of the Joint Chiefs of Staff

Chief of Staff of the United States Air Force

Chief of the Imperial General Staff

Chef des Stabes, commander of the Nazi Sturmabteilung

Deputy White House Chief of Staff, top aide to the White House Chief of Staff

Chiefs of Staff Committee, the most senior military personnel in the British forces

Ramatkal, or Chief of the General Staff, the highest ranking officer in the Israeli General Staff

Chief of the Defence Staff is the senior member of the Canadian Forces

The chief aide to a political leader

Chief of Staff (United Kingdom), the head of the Prime Minister's Office in the United Kingdom

Chief of Staff (United States Congress), the most senior staff member in the office of a member of the United States Congress

Chief of Staff (Canada), the head of the Prime Minister's Office of Canada

Chief of the General Staff

Chief of staff (military)

Chef de Cabinet (UN) to the United Nations Secretary General

Chief of Staff (Philippines), the head of the Office of the President in the Philippines

Chief of Staff (Brazil), the head of the Presidential Office and direct aide to the President of Brazil