City of Adelaide is a clipper ship, built in Sunderland, England, and launched on 7 May 1864. It was built by Pile, Hay and Co. to transport passengers and goods between Britain and Australia. Between 1864 and 1887 she made 23 annual return voyages from London and Plymouth to Adelaide, South Australia and played an important part in the immigration of Australia. On the return voyages she carried passengers, wool, and copper from Adelaide and Port Augusta to London. From 1869 to 1885 she was part of Harrold Brothers' "Adelaide Line" of clippers.

Sunderland is a port city in Tyne and Wear, England. It is a port at the mouth of the River Wear on the North Sea, approximately 10 miles (16 km) south-east of Newcastle upon Tyne. The built-up area had a population of 168,277 at the 2021 census, making it the second largest settlement in North East England after Newcastle. It is the administrative centre of the metropolitan borough of the same name.