Revelations of Divine Love is a medieval book of Christian mystical devotions. It was written between the 14th and 15th centuries by Julian of Norwich, about whom almost nothing is known. It is the earliest surviving example of a book in the English language known to have been written by a woman. It is also the earliest surviving work written by an English anchorite or anchoress.

Julian, who lived all her life in the English city of Norwich, wrote about the sixteen mystical visions or "shewings" she received in 1373, when she was in her thirties. Whilst seriously ill, and believing to be on her deathbed, the visions appeared to her over a period of several hours in one night, with a final revelation occurring the following night. After making a full recovery, she wrote an account of each vision, producing a manuscript now referred to as the Short Text. She developed her ideas over a period of decades, whilst living as an anchoress in a cell attached to St Julian's Church, Norwich, and wrote a far more extended version of her writings, now known as the Long Text. She wrote straightforwardly in Middle English.

Julian's work was preserved by others. Various manuscripts of both the Long Text and the Short Text, in addition to extracts, have survived. The first publication of the book was a translation of the Long Text in 1670 by the English Benedictine monk Serenus de Cressy. Interest in Julian's writings increased with the publication of three versions of Cressy's book in the nineteenth century, and in 1901, Grace Warrack's translation of the manuscript of the Long Text known as 'Sloane 2499' introduced the book to twentieth-century readers. Many other versions of Julian's book have since been published, in English and in other languages.

Julian of Norwich (1343 – after 1416), also known as Juliana of Norwich, Dame Julian or Mother Julian, was an English anchoress of the Middle Ages. Her writings, now known as Revelations of Divine Love, are the earliest surviving English language works by a woman, although it is possible that some anonymous works may have had female authors. They are also the only surviving English language works by an anchoress.

Julian lived in the English city of Norwich, an important centre for commerce that also had a vibrant religious life. During her lifetime, the city suffered the devastating effects of the Black Death of 1348–1350, the Peasants' Revolt (which affected large parts of England in 1381), and the suppression of the Lollards. In 1373, aged 30 and so seriously ill she thought she was on her deathbed, Julian received a series of visions or shewings of the Passion of Christ. She recovered from her illness and wrote two versions of her experiences, the earlier one being completed soon after her recovery—a much longer version, today known as the Long Text, was written many years later.

Julian lived in permanent seclusion as an anchoress in her cell, which was attached to St Julian's Church, Norwich. Four wills are known in which sums were bequeathed to a Norwich anchoress named Julian, and an account by the celebrated mystic Margery Kempe exists which provides evidence of counsel Kempe was given by the anchoress.

Details of Julian's family, education, or of her life before becoming an anchoress are not known; it is unclear whether her actual name was Julian. Preferring to write anonymously, and seeking isolation from the world, she was nevertheless influential in her lifetime. While her writings were carefully preserved, the Reformation prevented their publication in print. The Long Text was first published in 1670 by the Catholic Benedictine monk Serenus de Cressy, reissued by George Hargreaves Parker in 1843, and published in a modernised version in 1864. Julian's writings emerged from obscurity in 1901 when a manuscript in the British Museum was transcribed and published with notes by Grace Warrack; many translations have been made since. Julian is today considered to be an important Christian mystic and theologian.