William Dyce Cay

William Dyce Cay
Born(1838-03-28)28 March 1838
Edinburgh, Scotland
Died13 December 1925(1925-12-13) (aged 87)
Folkestone, England
OccupationScottish civil engineer

William Dyce Cay, MICE FRSE (28 March 1838 – 13 December 1925) was a Scottish civil engineer. He was responsible for the majority of late 19th century works to Aberdeen harbour. He was described by his cousin, James Clerk Maxwell, as a "watery engineer".