Mary Tsoni (Greek: Μαίρη Τσώνη; 25 June 1987 – 8 May 2017) was a Greek actress and singer. She was best known for her roles in the movies Evil (2005), Dogtooth (2009) and Evil: In the Time of Heroes (2009). For her role in Dogtooth, she won the award for Best Actress at the Sarajevo Film Festival, She was born in Athens. Her career began in 2005.
Tsoni was found dead in her apartment in Exarcheia, Athens on 8 May 2017, aged 30.