Nils Arvid Teodor Beckman (30 October 1902 – 22 January 1972) was a Swedish jurist and civil servant. He served as President of the Supreme Court of Sweden from 1963 to 1969.
Beckman's legislative work, both in the criminal law committee and in other committees, continued even after he became a member of the Supreme Court in 1947. However, for more than two decades, until his retirement in 1969, he devoted the majority of his efforts to judicial work at the highest level, serving as the President of the Supreme Court from 1963. His legal writings primarily focused on criminal law and family law. His contributions to the reform work that led to the new Penal Code made it natural for him to become the chief editor of the extensive and well-known commentary on the Penal Code, recognized by all Swedish jurists. Equally well-known and utilized were the case summaries in family law that he published in the Svensk Juristtidning ("Swedish Journal of Law") starting in 1937, with the last one just a few months before his death.