Sir Theodore Andrea Cook (28 March 1867 – 16 September 1928) was a British art critic and writer.

He subsequently studied at Radley College, where he also pursued sporting activities becoming captain of the football and boating teams.

[1] Theodore Cook's legacy from his artist mother was an early introduction to the world of paintings, sculpture and architecture.

This inspired him to travel particularly in Europe and to publish authoritarian works on Old Provence, 25 Great Houses of France, Leonardo da Vinci, and sculpture, among many others, some of which were illustrated by his mother.

As a freelance he wrote for the old Standard and contributed to the Daily Telegraph articles on rowing by "An Old Blue".