William Alexander (10 April 1767 – 23 July 1816) was an English painter, illustrator and engraver. The hallmarks of his work, usually executed in watercolours, were clearness and harmony of colour, simplicity and taste in composition, grace of outline, and delicacy of execution. He accompanied the Macartney Embassy to China in 1792. Prints of his work were reproduced from engravings. One of his works was used to illustrate Cadell & Davies' Britannia depicta.