Juliana of Nicomedia (Greek: Ίουλιανή Νικομηδείας) is an Anatolian Christian saint, said to have suffered martyrdom during the Diocletianic persecution in 304.

Both the Latin and Greek Churches mention a holy martyr Juliana in their lists of saints.

A pious matron named Januaria had built an oratory on one of her estates, and for its consecration, she sought relics (sanctuaria, that is to say, objects which had been brought into contact with the graves) of Saints Severin and Juliana.

Gregory wrote to Fortunatus II, Bishop of Naples, telling him to accede to the wishes of Januaria.

[4] Sometime after Juliana's martyrdom, a noble lady named Sephora travelled through Nicomedia and took a martyr's body with her to Italy to be buried in Campania.

[1] According to this account, Saint Juliana, daughter of an illustrious pagan named Africanus, was born in Nicomedia; and as a child was betrothed to the Senator Eleusius, one of the emperor's advisors.

It is said that her torture included being partially burned in flames and plunged into a boiling pot of oil, before finally being beheaded.

The story continues that Eleusius, filled with hate and on orders from the Roman governor, ruthlessly flogged her.

In the church of St Andrew at Hempstead, near Holt, Norfolk, her effigy appears on a medieval rood screen.

[7][8][9] St. Juliana is the subject of an Anglo-Saxon poem, believed to have been written by Cynewulf in the eighth century.