Kathleen Zellner is an American attorney who has worked extensively in wrongful conviction advocacy. Notable clients Zellner has represented include Steven Avery (who was the subject of the 2015 and 2018 Netflix series Making a Murderer), Kevin Fox (who was falsely accused of murdering his daughter), Ryan W. Ferguson, Larry Eyler, and 19 exonerees who are listed in the National Registry of Exonerations.