Joshua Law Chi-kong (Chinese: 羅智光; born 1957) is a Hong Kong government official.

He graduated from St Peter's College, Oxford University where he read PPE.

He rose to his present rank of Administrative Officer Staff Grade A1 in September 2005.

Law was also Permanent Secretary for Constitutional and Mainland Affairs since July 2007.

[1] In July 2017, he was appointed to Secretary for the Civil Service by Chief Executive Carrie Lam and served until a cabinet reshuffle in April 2020.