Hans-Reinhard Koch (27 November 1929 – 25 April 2018) was a German Roman Catholic bishop. He was born in Leinefelde-Worbis, Germany.
Koch was ordained to the priesthood in 1955. He served as titular bishop of Mediana and as auxiliary bishop of the Roman Catholic Diocese of Erfurt, Germany, from 1985 to 2004.
Koch died on 25 April 2018 in Erfurt, Germany of complications from a cerebral hemorrhage at the age of 88.