Tongjiang may refer to the following locations in China:
- Tongjiang, Heilongjiang (同江市), county-level city of Jiamusi, Heilongjiang
- Tongjiang, Tongjiang, Heilongjiang (同江镇), town in and seat of Tongjiang, Heilongjiang
- Tongjiang County (通江县), Sichuan
- Subdistricts (通江街道)
- Tongjiang Subdistrict, Harbin, in Daoli District
- Tongjiang Subdistrict, Nehe, Heilongjiang
- Tongjiang Subdistrict, Wuxi, in Chong'an District, Wuxi, Jiangsu
- Tongjiang Subdistrict, Jilin City, in Changyi District, Jilin City, Jilin
- Other divisions