Shanxi merchants, also known as Jin merchants, were the group of merchants from Shanxi province, China. Jin is an abbreviated name of Shanxi. Even though the history of noticeable Shanxi merchants can be dated back to as early as the Spring and Autumn Period, more than 2000 years ago, Shanxi merchants became prominent during the Ming and Qing dynasties, and their dominant influence in Chinese commerce, within the nation and with neighboring Mongolia, Russia, and Japan, lasted for more than 500 years.

Shanxi is an inland province of China and is part of the North China region. The capital and largest city of the province is Taiyuan, while its next most populated prefecture-level cities are Changzhi and Datong. Its one-character abbreviation is "晋", after the state of Jin that existed there during the Spring and Autumn period.