León Arslanián (born November 30, 1941) is an Argentine lawyer, jurist and public official who notably served as Chief Justice in the tribunal that presided over the 1985 Trial of the Juntas.

[4] He was designated president of the Province of Buenos Aires Crime Prevention Institute on February 11, 1998, and on April 13, accepted the post as provincial Minister of Justice and Security from Governor Eduardo Duhalde.

Arslanián proposed gun control measures, enacted stricter guidelines against police misconduct and streamlined criminal court proceedings, to which he attributed speedier rulings and a decline in crime rates in the province's coastal tourism hub, for example.

This stance, however, coincided with increased voter anxiety surrounding rising crime rates, as well as higher poll numbers for right-wing Unidád Bonaerense candidate Luis Patti.

Governor Duhalde supported the Justice Minister and his policy; but following repeated criticism by the frontrunner, Justicialist Party gubernatorial candidate Carlos Ruckauf, Arslanián resigned on August 5.