Sydney is the largest and most populous city in Australia and the state capital of New South Wales. Sydney is located on Australia's south-east coast of the Tasman Sea. Inhabitants of Sydney are called Sydneysiders, comprising a cosmopolitan and international population of people from numerous places around the world. Sydney is the world's largest English speaking city after London and New York City.

The site of the first British colony in Australia, Sydney was established[6] in 1788 at Sydney Cove by Arthur Phillip, commodore of the First Fleet as a penal colony. The city is built on hills surrounding Port Jackson which is commonly known as Sydney Harbour, where the iconic Sydney Opera House and the Harbour Bridge feature prominently. The hinterland of the metropolitan area is surrounded by national parks, and the coastal regions feature many bays, rivers, inlets and beaches including the famous Bondi Beach. Within the city are many notable parks, including Hyde Park and the Royal Botanic Gardens.

In 2010, Sydney was ranked 7th in Asia and 28th globally for economic innovation in the Innovation Cities Top 100 Index by innovation agency 2thinknow. Sydney also ranks among the top 10 most liveable cities in the world according to Mercer Human Resource Consulting and The Economist.

Sydney has a reputation as an international centre for commerce, arts, fashion, culture, entertainment, music, education and tourism, making it one of GaWC's Alpha + world cities. Sydney has hosted major international sporting events, including the 1938 British Empire Games, the 2000 Summer Olympics, and the final match of the 2003 Rugby World Cup. The main airport serving Sydney is Sydney (Kingsford Smith) Airport.