Assis-sur-Serre is a commune in the department of Aisne in the Hauts-de-France region of northern France.
Assis-sur-Serre is located 30 km southeast of Saint-Quentin and 15 km northwest of Laon. It is accessible by the D35 road from Remies in the west through the center of the commune and the village and continuing along Pouilly-sur-Serre in the east. Additionally, the D351 road travels north from the village, linking to the D642 that proceeds north to Montigny-sur-Crecy. The commune, which is all agricultural preserve for the development, features a network of country roads.
The Serre commune's northern border is established by a river that travels through it, but apart from a small loop off the Serre, there are no other rivers within the commune.
List of Mayors of Assis-sur-Serre
There is a tennis court and motocross land in the village.