Alfred William Cox (born Liverpool, England, 1857, died London, England 4 May 1919) was a racehorse owner and breeder. He was the son of a wealthy Scottish cotton broker, Alexander Robb Cox, and Margaret Lockhart Greenshields. His father Alexander was a director and partner in the firm of Cox, McEuon which dealt in jute, flax and hemp. The family bought the Hafod Elwy Estate in North Wales in 1864 for a holiday home and the estate remained in the possession of the family until 1987.