Peter Blankenborg Prydz (21 September 1776 – 6 March 1827 ) was a Norwegian military officer and representative at the Norwegian Constituent Assembly conducted at Eidsvoll during 1814. . He was born in the neighborhood of Abelsøe in the Østensjø district of Oslo, Norway. He was the son of Anne Hedevig Brochmann (1752-1834) and Hans Prydz (1751-1781), and had three brothers. He was a great-grandfather of the politician Hans Prydz (1868-1957).