The Bank of New South Wales was founded in Sydney as the first bank in Australia on 8 April 1817 by Governor Lachlan Macquarie. Branches were initially restricted to the colony of New South Wales, but were later opened at Moreton Bay, Brisbane, in 1850, Victoria in 1851, New Zealand in 1861, South Australia in 1877, Western Australia in 1883, Fiji in 1901, and Papua New Guinea and Tasmania in 1910. In 1982, the Bank of New South Wales merged with the Commercial Bank of Australia to form the Westpac Banking Corporation, which derived its name from from the fact that its major operations are in the Western Pacific. (source: today.wmit.net - April 8)
Addendum:
That bank had an official predecessor. The initial settlement in 1788 was accompanied by a Commissary - a quasi-military officicer appointed by the Treasury to provide support. The Commissary had the Military Chest (containing currency) and also the ability to raise bills payable against the Treasury. This enabled the colony to buy currency, pay its employees and purchase supplies and transport. As the colony developed, the Commissariat Store bought and sold produce, hired transport and ships, financed buildings and so on
The Commissariat provided what were effectively banking services, and though not called a bank, it effectively was one, establishing branches in each town and outpost as required.
1834 November 1 Commercial Banking Co of Sydney commenced
1982 Commercial Banking Co of Sydney merged with National Bank of Australasia
1983 National Commercial Banking Corp of Australia formed
1984 National Commercial Banking Corp of Aust changed name to National Australia Bank
The first bank to open a branch in Queensland was the Bank of New South Wales, which was also the first official bank in Australia. The first branch was opened at Moreton Bay, Brisbane, in 1850.
The "National Australia Bank" was previously known as the "National Bank of Australia".
Bank of Australia was created in 1826.
The Reserve Bank Of Australia.
The first church in South Australia was built in 1837, on, believe it or not, Hindley St, about 60 feet east of Bank St.
National Australia Bank (NAB) account number format has 6-digits. The first 3-digits are the bank institution code that is preceded by the 3-digit branch code.
Commonwealth Bank of Australia and Westpac Banking Corporation.
Commercial Bank of Australia ended in 1982.
Commercial Bank of Australia was created in 1866.
National Australia Bank was created in 1858.
The population of National Australia Bank is 2,011.
The population of National Australia Bank is 44,645.