Fausta of Cyzicus was a young Christian martyr who lived during the early 4th century. Born in Cyzicus around 298, she was only thirteen years old when she faced execution during the Diocletianic Persecution. After being orphaned, she remained steadfast in her faith despite intense suffering. Her refusal to sacrifice to Roman gods led to various forms of torture and eventual death, making her a significant figure in early Christian hagiography.