Henri Markovich Reznik, also Genri Reznik (; born 11 May 1938) is a prominent Russian lawyer (advocate), former criminal investigator and criminologist. He chaired the presidium of the Moscow City Bar Association from 2002 to 2015.
Reznik was teaching Kutafin Moscow State Law University since 2009. He left in 2017 after the University installed a plaque memorializing Stalin.