Sigríður Ásthildur Andersen (born 21 November 1971) is an Icelandic politician and lawyer who served as the Minister of Justice of Iceland from 2017–2019. She resigned as minister of justice after the European Court of Human Rights found her appointments of judges to the Icelandic court of appeals to be illegal. She has been a member of the Icelandic parliament (Althing) for the Independence Party since 2015.