Chinatown (Chinese: 墨爾本華埠) is an ethnic enclave in the Central Business District (CBD) of Melbourne, Victoria, Australia. Centred at the eastern end of Little Bourke Street, it extends between the corners of Swanston and Spring streets, and consists of numerous laneways, alleys and arcades. Established in the 1850s during the Victorian gold rush, it is notable for being the longest continuous Chinese settlement in the Western World and the oldest Chinatown in the Southern Hemisphere.

Melbourne's Chinatown has played an important role in establishing the culture of Chinese immigrants in Australia, and is still home to many Chinese restaurants, cultural venues, businesses and places of worship. Today, Melbourne's Chinatown is a major tourist attraction, known for its architectural heritage, annual festivals and cuisines of Asian origins, as well as its karaoke venues, bars and fashion boutiques.

Beyond Chinatown and the CBD, Melbourne's Chinese community is well-represented in other areas of the city, most notably Box Hill, where a $450 million development named "New Chinatown" is currently being constructed.

Chinatown is home to the Chinese Museum.