The name "Mary", when used of the Lord's mother, is always in Greek Mariam = the Hebrew Miriam, as is Ex. 15:20.

The other five are usually "Maria".

1. Mary the mother of our Lord (Matt. 1:16, &c).  The context never leaves room for any doubt as to her identity.

2. Mary the mother of James the less and Joses (Matt. 27:56.  Mark 15:40; 16:1.  Luke 24:10).  She is called "the other Mary" (Matt. 27:61; 28:1), and the wife of Cleopas (John 19:25).

3. Mary the sister of Martha, who anointed the Lord's feet (John 12:3), see Ap. 156 and 158.  She is mentioned by name only in Luke 10:39, 42 and John 11:1, 2, 19, 20, 28, 31, 32, 45;  and 12:3.

4. Mary Magdalene, of Magdala (Matt. 15:39).  She is always to be identified by this designation (Matt. 27:56.  Mark 16:1, 9.  Luke 8:2.  John 20:18, &c); there is no authority whatever for identifying her with the unnamed woman of Luke 7:37-50.

5. Mary the mother of John Mark (Acts 12:12).

6. Mary, one of Paul's helpers. (Rom. 16:6).