Conrad I the Elder (died about 864) is the count of several counties, most notably the Aargau and Auxerre, around Lake Constance, as well as Paris from 859 to 862/864. He is also the lay abbot of Saint-Germaine in Auxerre. Conrad's father was Welf. He was one of the early Welfs, a member of the Bavarian branch, and his sister Judith was the second wife of Louis the Pious.