Saint Marciana of Toledo was a Christian woman from Mauretania who lived during the Roman Empire. Driven by intense religious zeal, she abandoned her wealthy upbringing to live an ascetic life in a cave near Caesarea. She is primarily remembered for her vocal opposition to pagan traditions, which eventually led to her execution during the Diocletianic Persecution. Although her origins are linked to North Africa, she is widely known as Marciana of Toledo because her remains were later transferred to that city.