The Veil of Veronica, or Sudarium (Latin for sweat-cloth), also known as the Vernicle and often called simply the Veronica, is a Christian relic consisting of a piece of cloth said to bear an image of the Holy Face of Jesus produced by other than human means (an acheiropoieton, "made without hand"). Various existing images have been claimed to be the original relic, as well as early copies of it; representations of it are also known as vernicles.

The story of the image's origin is related to the sixth Station of the Cross, wherein Saint Veronica, encountering Jesus along the Via Dolorosa to Calvary, wipes the blood and sweat from his face with her veil. According to some versions, St. Veronica later traveled to Rome to present the cloth to the Roman Emperor Tiberius. The veil has been said to quench thirst, cure blindness, and even raise the dead.

The first written evidence of the story is from the Middle Ages, and during the 14th century, the veil became a central icon in the Western Church. In the words of art historian Neil Macgregor, "From [the 14th Century] on, wherever the Roman Church went, the Veronica would go with it." The act of Saint Veronica wiping the face of Jesus with her veil is celebrated in the sixth Station of the Cross in many Anglican, Catholic, and Western Orthodox churches.