Martin Sellner (born 8 January 1989) is an Austrian Neue Rechte and Identitarian activist, leader of the Identitäre Bewegung Österreichs (IBÖ, Identitarian Movement of Austria), and active in the alt-right movement.In 2008, he helped leading Austrian neo-Nazis hinder liberal demonstrations and made pilgrimages to memorial services for Wehrmacht soldiers.In March 2018, he was denied entry and deported from the United Kingdom.
A year later, he was denied entry to the United States.