This is the name of several New Testament characters, most importantly Mary the mother of Jesus. According to the gospels, Jesus was conceived in her by the Holy Spirit while she remained a virgin. This name was also borne by Mary Magdalene, a woman cured of demons by Jesus. She became one of his followers and later witnessed his crucifixion and resurrection.
Due to the Virgin Mary this name has been very popular in the Christian world, though at certain times in some cultures it has been considered too holy for everyday use. In England it has been used since the 12th century, and it has been among the most common feminine names since the 16th century. In the United States in 1880 it was given more than twice as often as the next most popular name for girls (Anna). It remained in the top rank in America until 1946 when it was bumped to second (by Linda). Although it regained the top spot for a few more years in the 1950s it was already falling in usage, and has since dropped out of the top 100 names.
This name has been borne by two queens of England, as well as a queen of Scotland, Mary Queen of Scots. Another notable bearer was Mary Shelley (1797-1851), the author of Frankenstein. A famous fictional character by this name is Mary Poppins from the children's books by P. L. Travers, first published in 1934.
The Latinized form of this name, Maria, is also used in English as well as in several other languages.
As an English name it has been in use since the Middle Ages, originally in the form Clare, though the Latinate spelling Clara overtook it in the 19th century and became very popular. It declined through most of the 20th century (being eclipsed by the French form Claire in English-speaking countries), though it has since recovered somewhat.
The name was borne by a 17th-century English queen and also by the second wife of Henry VIII, Anne Boleyn (the mother of Queen Elizabeth I), who was eventually beheaded in the Tower of London. Another notable bearer was the German-Jewish diarist Anne (Annelies) Frank, a young victim of the Holocaust in 1945. This is also the name of the heroine in the 1908 novel Anne of Green Gables by Canadian author L. M. Montgomery.