Oscar Ludvig Stoud Platou (16 July 1845 – 17 January 1929) was a Norwegian jurist.
After fourteen years as an assessor in Oslo City Court from 1876 to 1890, he was a professor at the Royal Frederick University from 1890 to 1920.
[1] Platou finished his secondary education at Christiania Cathedral School in 1863, enrolled at the university and took the cand.jur.
He was a deputy judge under his father in Nes District Court from 1870 to 1871, and was then hired at the University Library of Christiania.
In 1875, he won the Crown Prince Gold Medal for the thesis Det navngivne Handelsselskabs Retsforhold ligeoverfor Tredjemand, which also earned him the dr.juris degree in 1876.