- 三江侗族自治县 Sānjiāng Dòngzú Zìzhìxiàn Sanjiang CountySanjiang Dong Autonomous County in Liuzhou City, Guangxi
- 三江平原 Sānjiāngpíngyuán Sanjiang PlainSanjiang or Three Rivers Plain in Heilongjiang, a vast wetland watered by the Heilongjiang (Amur), Songhua, and Ussuri rivers.
- 三江并流 Sān Jiāng Bìngliú Three Parallel RiversThe Three Parallel Rivers of Yunnan Protected Areas, a region in northwestern Yunnan where the Jinsha, Lancang, and Nu rivers run roughly parallel for over 300 kilometers, recognized as a UNESCO World Heritage Site.
- 三江源 Sānjiāngyuán SanjiangyuanSanjiangyuan National Nature Reserve, a high plateau region of Qinghai containing the headwaters of the Yangtze, Yellow, and Mekong Rivers
- 三江生态旅游区 Sānjiāng Shēngtài Lǚyóu Qū Sanjiang Tourist AreaSanjiang Ecological Tourist Area in Wenchuan county [[汶川县|汶川縣|Wen4 chuan1 Xian4]], northwest Sichuan
- 建三江 Jiànsānjiāng JiansanjiangJiansanjiang, a large-scale agricultural development zone in the Sanjiang river plain of Heilongjiang Province