Sibu () is an inland city in the central region of Sarawak. It is the capital of Sibu District in Sibu Division, Sarawak, Malaysia. The city is located on the island of Borneo and covers an area of . It is located at the confluence of the Rajang and Igan Rivers, some 60 kilometres from the South China Sea and approximately north-east of the state capital Kuching. Sibu is mainly populated by people of Chinese descent, mainly from Fuzhou. Other ethnic groups such as Iban, Malay and Melanau are also present, but unlike other regions of Sarawak, they are not as significant. The town population as of 2010 is 162,676.