Anna Karin Pilsater (born 24 June 1960) is a Swedish politician with the Liberal People's Party. She is a former member of the Riksdag since 1991, representing Stockholm County, and was previously the party's spokesperson on economic policy.

Karin Pilsäter was born in Vantör in southern Stockholm. She studied at the Stockholm School of Economics 1984–1988. Before her involvement in politics she has worked as shop assistant, cashier, economic secretary, accountant and as economic chief.

She lives in Tullinge with her husband and their three children.

• Karin Pilsäter at the Liberal People's Party
• Karin Pilsäter at the Riksdag
• Interview in Jusek, October 3, 2002. (in Swedish)