अर्थशास्त्र में, किसी व्यापारी द्वारा सामान्य से बहुत अधिक सामान इकट्ठा करना जमाखोरी (hoarding) कहलाता है। जमाखोरी का मुख्य उद्देश्य बाजार में सामानों की कृत्रिम कमी पैदा करना और इससे सामान्य लाभ की अपेक्षा बहुत अधिक लाभ कमाना है।

Hoarding in economics refers to the concept of purchasing and storing a large amount of product belonging to a particular market, creating scarcity of that product, and ultimately driving the price of that product up. Commonly hoarded products include assets such as money, gold and public securities, as well as vital goods such as fuel and medicine. Consumers are primarily hoarding resources so that they can maintain their current consumption rate in the event of a shortage. Hoarding resources can prevent or slow products or commodities from traveling through the economy. Subsequently, this may cause the product or commodity to become scarce, causing the value of the resource to rise.