Dedekam is a Norwegian surname. Notable people with the surname include:
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Morten Smith Dedekam (1793–1861), Norwegian merchant and politician
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Sophie Dedekam
Sophie Dedekam (1 April 18201 June 1894) was a Norwegian composer and diarist, one of the most significant Norwegian women composers of the 19th century, and principally remembered today for a hymn included in the Church of Norway Hymn Book and f ...
(1820–1894), Norwegian composer and diarist
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Norwegian-language surnames