Hai'an (海安) is a county-level city in Jiangsu, China.
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Look up Hai'an in Wiktionary, the free dictionary.
Haian or Hai'an may also refer to:
- Hai'an Range (Chinese: 海岸山脈), on the eastern shore of Taiwan
- Hai'an Subdistrict (海安街道), Jinping District, Shantou, Guangdong
- Hai'an, Chenjiagang, Xiangshui, Yancheng, Jiangsu
- Chinese frigate Hai-an