Alma Ilona Pöysti born 16 March 1981) is a Finnish actress. She is the daughter of director Erik Pöysti and granddaughter of Finnish actors Lasse Pöysti and Birgitta Ulfsson.Pöysti has also lived and worked in Sweden.
In 2023 she was nominated for the Golden Globe Award for Best Actress – Motion Picture Comedy or Musical for Fallen Leaves.