What are the most popular baby names (male and female) in the history of Australia?
John and Margaret.
Between 1790 and 2011, nearly 262,000 baby boys were named John and nearly 96,500 baby girls were named Margaret. (I wish the article had mentioned the total number of baby boys and baby girls born during this period, so we could get an idea of proportion.)
The next-most-popular names were David and Sarah.
A total of 112,689 different names (46,230 male; 76,459 female) were chosen by Australians between 1790 and 2011. Of these, 82,335 (31,042 male; 51,293 female) were completely unique (i.e., used just once).