According to the Gospel of John, Mary of Clopas (Ancient Greek: Μαρία ἡ τοῦ Κλωπᾶ, María hē tou Clōpá) was one of the women present at the crucifixion of Jesus and bringing supplies for his funeral. The expression Mary of Clopas in the Greek text is ambiguous as to whether Mary was the daughter or wife of Clopas, but exegesis has commonly favoured the reading "wife of Clopas". Hegesippus identified Clopas as a brother of Joseph. In the latest official edition of the Roman Martyrology of the Catholic Church she is commemorated with Salome on April 24.

Along with Mary Magdalene and "Mary" Salome, Mary of Clopas is known as one of the Three Marys at the tomb of Jesus. Her relics are said to be in France at the Church of the Saintes Maries de la Mer.

Mary of Clopas is explicitly mentioned only in John 19:25, where she is among the women present at the crucifixion of Jesus:

Now there stood by the cross of Jesus His mother and His mother’s sister, Mary of Clopas, and Mary Magdalene.

The Gospels of Mark and Matthew each include similar passages that are nearly identical to one another:

Among which was Mary Magdalene, and Mary the mother of James and Joseph, and the mother of Zebedee's children.

There were also women looking on afar off: among whom was Mary Magdalene, and Mary the mother of James the less and of Joses, and Salome.

This has led scholars to identify Mary of Clopas with "Mary the mother of James and Joseph/Joses". The Gospels of Matthew and Mark mention James and Joseph/Joses (with Mark always using the less common variation "Joses") among the four brothers of Jesus.