Dassa-Zoumé, also known as Igbó Ìdàáshà or simply Dassa, is a city located in central Benin. It serves as the capital of the Collines Department and covers a total area of 1,711 square kilometres (661 sq mi).
The city is situated along significant transportation routes, including the main north-south highway and the Cotonou-to-Parakou railway. As of 2013, the commune had a recorded population of 112,118 residents.