The , commonly referred to as the National Security Advisor, is the head of the National Security Secretariat, a department within the Cabinet Secretariat in charge of the

National Security Council A national security council (NSC) is usually an executive branch governmental body responsible for coordinating policy on national security issues and advising chief executives on matters related to national security. An NSC is often headed by a n ...

. As the principal advisor to the Prime Minister on matters regarding national security, the Secretary-General is one of the most senior officials in the Prime Minister’s Office. The Secretary-General is appointed and serves at the pleasure of the Prime Minister. The current Secretary-General is former Vice-Minister for Foreign Affairs, Masataka Okano, who took office on 20 January 2025.

List of Secretaries-General

References

National security institutions 2013 establishments in Japan {{Japan-gov-stub