Ragnar Sigvald Skancke (1890 - August 28, 1948) was the Norwegian "Minister of Labour" and "Minister for Church and Educational Affairs" in Vidkun Quisling's government of the Nasjonal Samling party during World War II.

Before the war Skancke was a highly respected professor of electrical engineering at the Norwegian Institute of Technology and a member of the Royal Norwegian Academy of Sciences.

When the war ended, Skancke was first imprisoned for life, but three years later the government sentenced him to death. His execution is considered by some (but not officially) to have been a miscarriage of justice, along with many of the post-war trials.

He was the last person to be executed in Norway.