Women named Mary are about as difficult to sort out as men named John in early Christianity. Here is a list of instances of Mary/Miriam (Μαρία[μ]) in the New Testament, the Apostolic Fathers, and a few of the other important early texts:
Mary the Mother of Jesus
Matthew 1.16, 18, 20; 2.11 (nativity).
Matthew 13.55 = Mark 6.3.
Luke 1.27, 30, 34, 38, 39, 41, 46, 56; 2.5, 16, 19, 34 (nativity).
Ignatius to the Ephesians 7.2 (middle & long recensions).
Ignatius to the Ephesians 18.2 (middle & long recensions).
Ignatius to the Ephesians 19.1 (middle & long recensions).
Ignatius to the Magnesians 1.1 (long recension).
Ignatius to the Trallians 9.1 (middle & long recensions).
Ignatius to the Trallians 10.4 (long recension).
Ignatius to the Smyrnaeans 1.1 (long recension).
Philip 18 (×2).
Papyrus Cairensis 10735 recto, line 2.
Papyrus Oxyrhynchus 210 recto, line 5.
Mary the Mother of James, the Other Mary, the Mother of Joses, the Mother of James and Joses
Matthew 27.56 = Mark 15.40
Matthew 27.61 = Mark 15.47
Matthew 28.1 = Mark 16.1
Mary the Wife of Cl(e)opas (= the Other Mary??)
Matthew 27.56 = Mark 15.40.
Matthew 27.61 = Mark 15.47.
Matthew 28.1 = Mark 16.1.
John 20.1, 11, 16, 18.
Mary the Sister of Martha
Luke 10.39, 42.
John 11.1, 2, 19, 20, 28, 31, 32, 45.
[Papyrus Oxyrhynchus 4009 has the anointing of Jesus, but the name of the woman is not present, possibly because the papyrus is fragmentary.]
Mary the Mother of John Mark
Mary, a Hard Worker
There is also an instance of Mary the mother of Jesus attributed to the gospel of the Hebrews in Pseudo-Cyril of Jerusalem, Discourse on Mary Theotokos
12a, but this attribution is dubious. Also, Origen, commenting on Matthew 13.55 in On Matthew
10.17, attributes a statement about Mary being the mother of Jesus, but not of James and the other sons of Joseph, to the Gospel of Peter. Finally, I have not counted the Infancy Gospels of Thomas and James, which are full of references to Mary the mother of Jesus, and the latter of which makes the same claim as the Gospel of Peter as Origen recounts it.