Reznick is a Jewish surname, a variant of Reznik. Notable people with the surname include:
Bruce Reznick (born 1953), American mathematician A spelling variant for David Resnick (1924–2012), Brazilian-born Israeli architect and town planner Howard Reznick, birth name of Hanon Reznikov (1950–2008), American actor and writer Dr. Morgan Reznick, a character on The Good Doctor (TV series) Allen Reznick (born 1952), American realtor