Karolina Gruszka is a Polish film actress. She has appeared in more than 30 films and television shows since 1996. She was nominated for an award as Best Actress for her role in Kochankowie z Marony at the 2007 Polish Film Awards. In 2019, she appeared in the Icelandic movie Gullregn, directed by Ragnar Bragason. Although she previously did not know the language, she had to perform all her lines in Icelandic.