Walter Van Rensselaer Berry (July 29, 1859 – October 12, 1927[1]) was an American lawyer, diplomat, Francophile, and friend of several great writers.

After serving as a judge at the International Tribunal of Egypt from 1908 to 1911, he settled in Paris for the remainder of his life and became a strong advocate of France, tirelessly promoting its cause in the United States when World War I broke out in 1914; he served as President of the American Chamber of Commerce in Paris from 1916 to 1923.

"[3]: 638 Geoffrey Wolff in his life of Harry Crosby describes Berry as a fashion plate well over six feet tall.

Caresse described him to me very much as she did in her careless memoirs—slimness, thinness, wearing a morning coat and striped trousers like a diplomat and highly polished button-shoes.

[2]: 515  He was a cousin of Harry Crosby, leaving him in his will "my entire library except such items as my good friend Edith Wharton may care to choose.