Eili Harboe (born 16 August 1994) is a Norwegian actress. She was born in Stavanger. She starred in Joachim Trier's 2017 film Thelma (as the principal character Thelma). Thelma and Harboe's performance received good reviews in the Norwegian press. On November 25th, 2017, she was awarded the Silver Astor for Best Actress at the 32nd Mar del Plata International Film Festival.