Athies-sous-Laon is located 3 km east ofLaon and 15 km west ofSissonne. It can be accessed by the D977 from Laon which continues east toGizy. TheAutoroute des Anglais (A26, E17) traverses the commune from north to southeast, but there is no exit in the commune. There is also a railway line going east from Laon with a station in the commune northeast of the town. The town area of Athies-sous-Laon is quite large, but is separated from Laon by farmland. There is the remains of part of a disused airbase in the north of the commune, but most of the rest of the commune is farmland with a small area of forest near the town.[3]
TheRu du Barentons stream flows from the north where it forms part of the northern border of the commune and continues southeast through the town then west to join the Marais Canal.[3]
Sub-LieutenantCésar Méléra of the Colonial Infantry was born in Athies-sous-Laon on 14 July 1884, mobilized on 2 August 1914, fought at theYser, inArtois, theChampagne, and inVerdun. He was severely wounded inVerdun on 18 August 1916, three timesmentioned in dispatches, Chevalier of theLegion of Honour. He died for France struck by a bullet to the heart at Brin (Lorraine) on 25 October 1918. He was the Author of the bookVerdun (June–July 1916) the Mountain of Reims (May–June 1918), Editions de La Lucarne, 1925(in French). His name appears in thePanthéon among dead writers of the Field of Honour during the 1914-1918 war.