Girard Bank was a Philadelphia based bank founded by Stephen Girard in 1811. The bank was acquired by Mellon Bank in 1983 and then, two decades later, by Citizens Bank.In its early years, the bank was variously known as “Girard’s Bank,” or as “Girard Bank.” or also as “Stephen Girard’s Bank” or even the “Bank of Stephen Girard.” By the end of the 19th century the bank was known as The Girard National Bank. Girard's bank became the Girard Trust Company, and later Girard Bank.