MySQL is the world’s most popular and widely used open-source relational database. It was originally founded and developed in Sweden by two Swedes and a Finn: David Axmark, Allan Larsson and Michael "Monty" Widenius, who had worked together since the 1980’s. Why “My”? The name MySQL owes its name to Monty’s daughter My. Indeed Michael, often called Monty, has a habit of naming his projects after his children: MariaDB was named after his youngest daughter and MaxDB was named after his son Max.