Enguerrand III de Boves, Lord of Coucy (c. 1182 – 1242) was a medieval French nobleman.

Enguerrand campaigned in Anjou in 1205, and in 1214, fought in the French victory over an Anglo-German alliance at the Battle of Bouvines led by Philip II Augustus.

He was a notable member of the French force which invaded the Kingdom of England (1216–1217) to depose King John.

After the death of King Louis VIII of France, Enguerrand was chief among the nobles who resisted the regency of Blanche of Castile for her son Louis IX of France, although he eventually returned to the royal favor.

Enguerrand made his mark on the Picardy landscape by constructing Coucy Castle.