Per Johan Græsli (23 February 1903 – 26 July 1945) was a Norwegian physician and resistance member.
He was born in Trondhjem to Ole Græsli (1880–1940) from Tydal Municipality and Ingeborg Kjersem (1876–1944).
He was married, and lived in Hetland Municipality where he worked as a reserve physician at Rogaland Hospital.
[1] During the occupation of Norway by Nazi Germany he joined the Norwegian resistance movement.
He was incarcerated in Grini concentration camp until 3 May 1943, except for a period at Arkivet from 17 August 1942 to 29 March 1943.