Xinkaihe Subdistrict is a subdistrict located on northwestern Hebei District, Tianjin, China. It is situated to the southeast of Tianmu Town, southwest of Tiedong Road Subdistrict, north of Hongshunli and Santiaoshi Subdistricts, and east of Xigu and Dingzigu Subdistricts. It was home to 82,661 as of 2010.