Ingrid Lilian Thulin (Swedish pronunciation: [ˈɪŋːrɪd tɵˈliːn]; 27 January 1926 – 7 January 2004) was a Swedish film actress.

Thulin was born in Sollefteå, Ångermanland, northern Sweden, the daughter of Nanna (née Larsson) and Adam Thulin, a fisherman. She took ballet lessons as a girl and was accepted by The Royal Dramatic Theatre ("Dramaten") in Stockholm 1948.