No, French was not one of the middle colonies in colonial America. The middle colonies typically refer to New York, New Jersey, Pennsylvania, and Delaware. These colonies were characterized by a diverse population and an economy based on agriculture, trade, and manufacturing.
The French had colonial interests in North America, particularly in regions that would become Canada and parts of the Midwest and Louisiana, but their territories were separate from the English middle colonies. French colonies were primarily focused in Canada (New France) and the Mississippi Valley rather than the middle Atlantic region.