Arsenio Farell Cubillas (June 30, 1921 – May 15, 2005) was a Mexican lawyer and politician affiliated with the Institutional Revolutionary Party (PRI).
He received a bachelor, master and doctorate's degree in law from the National Autonomous University of Mexico (UNAM), where he also taught several courses for almost 19 years (1954 – 1973) before heading the Mexican Institute of Social Security in the López Portillo administration.