James Henry Lau Jr. (Chinese: 劉怡翔; born 24 April 1950) is a Hong Kong government official. He is the current Secretary for Financial Services and the Treasury since 2017. He graduated from the University of Waterloo with a Bachelor of Mathematics (Computer Science and Statistics) Honours Degree and a Master of Mathematics Degree in Computer Science. He joined the Hong Kong government as an Administrative Officer (AO) in 1979 and was promoted through the ranks to AO Staff Grade C. He resigned in 1993 to join the Hong Kong Monetary Authority (HKMA). Between 1993 and 2004 he was the Head and Executive Director of various divisions of the HKMA. In 2004, he was seconded to the Hong Kong Mortgage Corporation as Chief Executive Officer until he retired in 2012. In 2013, he was appointed Under Secretary for Financial Services and the Treasury. In 2017, he was appointed Secretary for Financial Services and the Treasury of the administration of Chief Executive Carrie Lam.