William Douglas Caroe (1857 – 1938) was a British architect, particularly of churches.
St David's Church, Exeter (1897 - 1900)
He was educated at Ruabon and Trinity College, Cambridge, graduating BA in 1879. Caroe was articled to John Loughborough Pearson; he wrote the article on Pearson in the Encyclopædia Britannica, (11th ed., 1911).
His father, Anders Kruuse Caroe, was the Danish Consul in Liverpool. His sons were the architect Alban and Olaf.
He became known as "a consummate master of building according to medieval precedent". The firm he founded, Caroe & Partners, still flourishes, specialising in ecclesiastical architecture, especially the restoration of historic churches.
His own country house, "Vann" in Hambledon, Surrey, was featured on the TV series The Curious House Guest in 2006. "Vann" is open on National Gardens Scheme days and by appointment.