Norbert Trelle (born 5 September 1942) is a prelate of the Roman Catholic Church.

Born in Kassel, Trelle was ordained to the priesthood on 2 February 1968.

Trelle received his episcopal consecration on the following 1 May from Joachim Cardinal Meisner, archbishop of Cologne, with the auxiliary bishop emeritus of Cologne, Augustinus Frotz, and the auxiliary bishop of Cologne, Klaus Dick, serving as co-consecrators.

On 29 November 2005 he was appointed bishop of Hildesheim, where he was installed on 11 February 2006 untíl 9 September 2017.

This article about a German Catholic bishop or archbishop is a stub.