Lena Ingeborg Hallengren (born 25 December 1973)[citation needed] is a Swedish politician of the Social Democratic Party who has been served as Minister for Health and Social Affairs in the cabinet of Prime Minister Stefan Löfven from 21 January 2019 until he left office in November 2021.

In March 2018, Hallengren became Minister for Children, the Elderly and Equality after her predecessor Åsa Regnér left the government for a post in the United Nations.

At the formation of the second cabinet under prime minister Stefan Löfven in January 2019, Hallengren was promoted to head of the same ministry.

Subsequently, she resigned in October 2022 from her office as Minister for Health and Social Affairs.

Since 2020, Hallengren has also been a member of the Global Leaders Group on Antimicrobial Resistance, co-chaired by Sheikh Hasina and Mia Mottley.