Karin Märta Elisabeth Enström (born Landerholm 23 March 1966) is a Swedish politician of the Moderate Party. She has served as Secretary-General of the Moderate Party since October 2022 and has been Member of the Riksdag since the 1998 general election, representing Stockholm County. She served as Minister for Defence in the cabinet of Fredrik Reinfeldt from 2012 to 2014.^[1] She is an Amphibious Corps officer by profession.

Enström has been a member of the Riksdag since 1998, representing Stockholm County. She was a member of the Defense Committee from 2002 to 2010, serving as its Chairman from 2008. After the 2010 general election she was appointed as Chairman of the Committee on Foreign Affairs and was also a member of the War Delegation and the Foreign Policy Council. Enström was commissioned as an officer in 1987, passed the Royal War College (Kungliga Krigshögskolan) common course in 1988, and its higher course in 1993. She currently holds the rank of captain in the Swedish Amphibious Corps. She has been a member of the City Council of Vaxholm since 1994 and was chairman of the council from 2002 to 2006.

• European Council on Foreign Relations (ECFR), Member of the Council^[2]

Enström is the daughter of surgeon general Staffan Landerholm and Olena (born Tingdahl). Her older brother, Henrik Landerholm, is serving as Sweden's National Security Advisor since 2022^[3] and was Sweden's Ambassador to Riga from 2013 to 2017 and Sweden's Ambassador to the United Arab Emirates from 2017 to 2021.^[4][5] Her sister, Louise Landerholm Bill, is married to Per Bill. Her niece, Alice Landerholm, is chairman of the Moderate School Youth since 2023.^[6]

She is married to Anders Enström, a lieutenant colonel in the Amphibious Corps employed at the Navy Tactical Staff Headquarters. She has three children.^[7]