Oliver Hazard Perry Belmont (November 12, 1858 – June 10, 1908) was an American socialite and United States Representative from New York. Belmont was a member of the banking firm of August Belmont and Co. Belmont served as delegate to the Democratic National Convention in 1900, and was elected as a Democrat from New York’s 13th District to the Fifty-seventh Congress serving from March 4, 1901 until March 3, 1903.
Oliver’s father was August Belmont, a German-American politician, financier, foreign diplomat, and the founder and namesake of the Belmont Stakes. Oliver Belmont used his family’s fantastic wealth to live a lavish lifestyle.
He was elected to The Lambs in 1887.
Oliver Belmont died on June 10, 1908, in East Meadow, New York, from appendicitis. He was interred in Woodlawn Cemetery in The Bronx. His mausoleum, designed by Richard Morris Hunt, is an exact replica of the Chapel of St. Hubert at Château d’Amboise in France, and is one of the most famous cemetery sites in the U.S. He is interred with his second wife, the suffragette icon Alva Vanderbilt Belmont.