Joseph Bailly (7 April 1774 – 21 December 1835) was a fur trader and a member of an important French Canadian family that included his uncle, Charles-François Bailly de Messein.
Bailly was one of several Canadian from prominent families who were important in the western fur trade. In 1822, he established a trading post near present-day Porter, Indiana, making him the foremost pioneer of that area.