Lau is a surname. Notable people with the surname include:
Andy Lau (born 1961), Hong Kong singer and actor
Amber Liu (singer) (born 1992), Chinese singer in South Korean girl group f(x)
Andrew Lau (born 1960), Hong Kong director and producer
Charlie Lau (1933–1984), American catcher and hitting coach in Major League Baseball
Christel Lau (born 1944), German field hockey player
Evelyn Lau (born 1971), Canadian writer
Gordon Lau (1941–1998), American politician
Hans E. Lau (1879–1918), Danish astronomer
Hawick Lau, Hong Kong actor
Henry Lau (born 1989), Chinese singer in South Korean subgroup Super Junior-M
Jean Marie du Lau (1738–1792), Archbishop of Arles, killed during the French Revolution
Laurence Lau (born 1954), American actor
Sean Lau (born 1964), Hong Kong actor
Susanna Lau, aka "Susie Bubble", British fashion blogger and journalist
Wesley Lau (born 1921), American film and television actor
Yisrael Meir Lau (born 1937), former Orthodox Ashkenazi Chief Rabbi of Israel
