Huaiyin may refer to:
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Huai'an (), named Huaiyin before 2001, a prefecture-level city in Jiangsu, People's Republic of China
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Huaiyin District, Huai'an (), Jiangsu, People's Republic of China
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Huaiyin District, Jinan (), Shandong, People's Republic of China
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Chinese frigate ''Huaiyin'' (513), 1977-2013
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