A potter's field, paupers' grave or common grave is a place for the burial of unknown, unclaimed or indigent people. "Potter's field" is of Biblical origin, referring to Akeldama, stated to have been purchased after Judas Iscariot's suicide by the chief priests of Jerusalem with the coins that had been paid to Judas for his identification of Jesus. The priests are stated to have acquired it for the burial of strangers, criminals, and the poor, the coins paid to Judas being considered blood money. Prior to Akeldama's use as a burial ground, it had been a site where potters collected high-quality, deeply red clay for the production of ceramics, thus the name potters' field.

Judas Iscariot was—according to Christianity's four canonical gospels—a first-century Jewish man who became a disciple and one of the original Twelve Apostles of Jesus Christ. Judas betrayed Jesus to the Sanhedrin in the Garden of Gethsemane by kissing him on the cheek and addressing him as "master" to reveal his identity in the darkness to the crowd who had come to arrest him. Like Brutus, his name is often used synonymously with betrayal or treason.