Erika Karkuszewska, known professionally as Erika Kaar, is an actress from Poland.
Kaar's first screen role was as Joanna, a Polish nurse, on the BBC miniseries The Passing Bells. She played Natalia Domirska on the Polish television series Az po sufit!. She made her Bollywood playing Olga in Shivaay directed by Ajay Devgan. Erika can currently be seen playing the role of Zorya Polunochnaya on the Starz TV series American Gods.