Þorgerður Katrín Gunnarsdóttir (born 4 October 1965) is an Icelandic politician, who has been chairman of the Reform Party since 2017.
Þorgerður was deputy chairman of the Independence Party from 2005–2010.
She was the Minister of Education, Science and Culture from 31 December 2003 to 1 February 2009.
After the Icelandic economic crash in 2008, Þorgerður was de facto leader of the government in Geir Haarde's absence owing to Geir having been diagnosed with cancer.
She left the Independence Party in 2016 and joined the newly founded Reform Party and became its chairman the following year.
She was Minister of Fisheries and Agriculture in 2017.