Zagnanado, also known as Zangnanado, is a town, arrondissement, and commune situated in the Zou Department of southern-central Benin. The commune encompasses a total area of 750 square kilometres.
Geographically, the town is located approximately 47 kilometres from Abomey and 165 kilometres north of Cotonou. As of 2013, the population of Zagnanado was recorded at 132,401 people.