National Security Advisor (Japan)

{{Infobox official post

| post = Secretary-General of the National Security Secretariat

| body =

| native_name = 国家安全保障局長

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| insignia = Goshichi no kiri.svg

| insigniasize = 80px

| insigniacaption = Emblem of the Government of Japan

| image = 250px

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| incumbent = Masataka Okano

| incumbentsince = 20 January 2025

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| department = Cabinet Secretariat

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| member_of =

| reports_to = Prime Minister of Japan

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| appointer = Prime Minister of Japan

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| termlength = No fixed term

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| formation = {{start date and age|2013|12|4}}

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| deputy = Deputy Secretary-General of the National Security Secretariat

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}}

The {{nihongo|Secretary-General of the National Security Secretariat|国家安全保障局長|Kokka-Anzen-Hoshō-Kyoku-Chō}}, 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.{{Cite web|url=https://www.cas.go.jp/jp/gaiyou/jimu/anzenhosyou.html|title=The National Security Secretariat|website=www.cas.go.jp}} 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.{{cite web|url=https://www.kantei.go.jp/jp/singi/anzenhosyoukaigi/konkyo.pdf|title=The National Security Council|website=www.kantei.go.jp}} 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.{{Cite web |title=Japan announces new national security adviser |url=https://www.japantimes.co.jp/news/2025/01/10/japan/politics/okano-akiba-national-security-advisor/ |date=10 January 2025 |website=Japan Times}}