Originally Pont de Neuilly was a small hamlet under the jurisdiction of Villiers, a larger settlement mentioned in medieval sources as early as 832 and now absorbed by the commune of Levallois-Perret. It was not until 1222 that the little settlement of Neuilly, established on the banks of the Seine, was mentioned for the first time in a charter of the Abbey of Saint-Denis: the name was recorded in Medieval Latin as "Portus de Lulliaco", meaning "Port of Lulliacum." In 1224 another charter of Saint-Denis recorded the name as "Lugniacum." In a sales contract dated 1266, the name was also recorded as "Luingni."