Peter Collett (8 August 1766 – 27 July 1836) was a Norwegian judge.
He was born in Modum as a son of landowner Peter Collett (1740–1786) and Maren Kirstine Holmboe (1745–1768). He was a brother of Christian Ancher Collett and great-grandfather of Emil Collett. In August 1794 he married vicar's daughter Eilertine Severine Bendeke (1777–1857).[1] He was an assessor in the diocesal court of Akershus from 1802 to 1814, and in the Supreme Court of Norway from 1814 to 1830.[2]