Ludvig Johan Carl Manthey (1 September 1809 – 8 October 1875) was a Norwegian civil servant.
He graduated as cand.jur. in 1834. After a career in a Norwegian government ministry, he was appointed stipendiary magistrate () in Tromsøe in 1855. From 1859 to his death in 1875 he held the same position in Trondhjem.Biographies, hosted by Trondheim public library
He was a brother of August Christian Manthey, the government minister.
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