Lorentz Henrik Müller Segelcke (14 November 1829 – 25 October 1910) was a Norwegian military officer, engineer and politician.
He was born at Bogstad as a son of premier lieutenant Christen Arentz Segelcke (1801–1837) and Sofie Teresia Bonnevie (1810–1896).
[1] He was also a brother-in-law of his own sister Margretha Henrikke, who married his wife's oldest brother Niels Cornelius Bonnevie.
He served in the Engineer Brigade for many years, and also had a parallel career under the road inspector Johannes Benedictus Klingenberg in Christiania from 1855.
In May 1875 he left the Council of State Division,[4] but until 5 June he served as a member of the Interim Government during King Oscar II's travel in Germany.