The name that is transliterated as “Mary” in English is translated in Libras (Brazilian Sign Language) with a sign that combines the letter M and “witness” (because she witnessed the crucifixon). (Source: Missão Kophós )
“Mary” in Libras (source )
More information on Mary, mother of James.
For more information on translations of proper names with sign language see Sign Language Bible Translations Have Something to Say to Hearing Christians .