Huaiyin, former city, north-central Jiangsu sheng (province), China. It is situated on the Grand Canal, located at the point where (until 1853) it crossed the lower course of the Huang He (Yellow River). In 2001 Huaiyin and several other surrounding administrative entities were amalgamated to create a new city under the name Huai’an; Huaiyin became a district of the new municipality.