The Van Tassell and Kearney Horse Auction Mart is a building in East Village, Manhattan, New York City. The building was constructed in 1903-04 to the designs of Jardine, Kent & Jardine in the Beaux-Arts Style. It originally served as a horse auction mart that catered to New York's elite families, including the Vanderbilts and Delanos. Each Tuesday and Friday, Van Tassell & Kearney held auctions in the building. Though carriages remained an important part of the business, most advertisements and newspaper stories about the mart concerned the sale of horses, particularly high-priced ribbon winners, polo ponies, hunters, and thoroughbreds. Other sales were devoted to breeding stock and coach horses, including a large group of horses co-owned by Alfred W. Vanderbilt and Robert L. Gerry in 1906.