Jesu Dulcis Memoria is a Christian hymn authored by Saint Bernard of Clairvaux. The name can refer either to the entire poem, which, depending on the manuscript, ranges from forty-two to fifty-three stanzas, or only the first part. Three sections of it are used as hymns in the Liturgy of the Hours of the Feast of the Holy Name of Jesus: "Iesu dulcis memoria" (Vespers), "Iesu rex admirabilis" (Office of Readings), "Iesu decus angelicum" (Lauds).