Hong Kong national security legislation may refer to one of the following laws/bills:

Laws in force 2020 Hong Kong national security law, a national law of China Safeguarding National Security Ordinance, a 2024 local law of Hong Kong

Withdrawn bill

National Security (Legislative Provisions) Bill, a 2003 withdrawn local legislation proposal in Hong Kong

Basis for legislation

Article 23 of the Hong Kong Basic Law, a 1997 national law of China Decision of the National People's Congress on Establishing and Improving the Legal System and Enforcement Mechanisms for the Hong Kong Special Administrative Region to Safeguard National Security, a 2020 congressional decision of China