Walford Graham Robertson (8 July 1866 – 4 September 1948) was a British painter, illustrator and author. He donated over 20 works of art to the Tate Gallery, London.

Walford was an important collector of art, especially William Blake. He wrote plays, novels and a memoir, Life Was Worth Living (1931). He painted and illustrated books and designed costumes for Sarah Bernhardt and Ellen Terry.

Walford was twice portrayed by John Singer Sargent. He was sociable and knew many notable people, including Oscar Wilde and artists. He was a source of witty quotes and anecdotes. The New York Times printed a biographical article about him in 2001.