Kyranna of Thessaloniki was an 18th-century Christian martyr born in Ossa, near Thessaloniki, within the Ottoman Empire. Living during a period of Ottoman rule, she is remembered for her refusal to abandon her faith. According to historical accounts, she faced execution after an Ottoman official attempted to force her into marriage and conversion to Islam. She died in 1751 at the age of twenty, and her life was later documented by Saint Nikodemos the Hagiorite in his writings on new martyrs.