Ragna Árnadóttir (born 30 August 1966) is an Icelandic lawyer, politician and former Minister of Justice and Ecclesiastical Affairs of Iceland. She previously served as the acting office manager of the Prime Minister's Office from 15 January 2009. Ragna started working for Landsvirkjun, Iceland's national power company and its largest generator of electricity, in 2010; from 2012 to 2019, she was vice president of the company. She has been the Secretary General of Alþingi (is the national parliament of Iceland) since 1 September 2019.