Rizhao (Chinese: 日照; pinyin: Rìzhào; Wade–Giles: Jih-Chao) is a prefecture-level city in southeastern Shandong province, People's Republic of China. It is situated on the coastline along the Yellow Sea, borders Qingdao to the northeast, Weifang to the north, Linyi to the west and southwest, and faces Korea and Japan across the Yellow Sea to the east. Rizhao is a major seaport and is approximately 620 km north of Shanghai, 170 km southwest of Qingdao, and 120 km north of Lianyungang. The Rizhao seaport's primary business is loading and unloading iron ore and coal. Other products passing through the seaport include cement, nickel, bauxite, and the like. Rizhao City means City of Sunshine in Chinese. The city is known for its sustainability, and it mandates solar-water heaters in all new buildings. Rizhao city was recognized by the United Nations as one of the most habitable cities in the world in 2009.

The city population stands at 2,801,100 as of the 2010 census. Out of those, a little over 865,000 people live in the urban area of Donggang district.