St. Niklaus is a village and a municipality in the Mattertal, part of the district of Visp in the canton of Valais in Switzerland. St. Niklaus is first mentiā¦St. Niklaus is a village and a municipality in the Mattertal, part of the district of Visp in the canton of Valais in Switzerland. St. Niklaus is first mentioned in 1233 as chousun. In 1272 it was mentioned as ecclesia Sancti Nicholai de Chouson, Gebreitun de Gazun, 1388 in villa sti nicolai de chosun, niu a fr Saint-Nicolas.