哈德逊湾公司（英语：Hudson's Bay Company，HBC；法语：Compagnie de la Baie d'Hudson），旧译乞臣比公司或乞慎比公司，又称海湾百货公司（英文：The Bay；法文：La Baie），于1670年注册成立，是北美最早成立的商业股份公司，也是全世界最早成立的公司之一。现在总部位于加拿大安大略省多伦多辛普森塔。旗下公司主要经营零售业，子公司有哈得逊湾、Home Outfitters、罗德与泰勒、萨克斯第五大道和Zellers。

The Hudson's Bay Company (HBC; French:Compagnie de la Baie d'Hudson), commonly referred to as "The Bay" ("La Baie" in French), is a Canadian retail business group. A fur trading business for much of its existence, today Hudson's Bay Company owns and operates retail stores throughout Canada, Germany, Belgium and the United States with Galeria Kaufhof, Gilt, Hudson's Bay, Home Outfitters, Lord & Taylor, Saks Fifth Avenue and Saks Fifth Avenue OFF 5TH. HBC's head office is in the Simpson Tower in Toronto, Ontario. The company is listed on the Toronto Stock Exchange under the symbol "HBC".