Jean Paul Hippolyte Emmanuel Adhémar Esmein (1 February 1848 – 22 July 1913) was a French jurist. He authored numerous textbooks on the history of French public law and French constitutional law. He also wrote numerous monographs on other subjects, particularly including canon law, the teaching of which in France he renewed through his works. His most famous one is perhaps his "History of Continental Criminal Procedure" which was first published in 1913 and has since been widely received in academic literature.