Cuno I of Pfullingen (German: Kuno I. von Pfullingen) (c. 1016 - 1 June 1066) was the Archbishop of Trier from April to June in 1066. Cuno was appointed by the Emperor Henry IV through the influence of his uncle, Anno II, Archbishop of Cologne the Archbishop of Trier in 1066 after the death of Eberhard. As the appointment took place without consulting the people, aristocracy or the priesthood, it generated great displeasure in the archdiocese.