Guiyu may refer to:
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Guiyu oneiros
''Guiyu oneiros'' is one of the earliest articulated Osteichthyes, bony fish discovered. Fossils of ''Guiyu'' have been found in what is now Qujing, Yunnan, China, in late Silurian marine strata, about 425 million years old.
''Guiyu'' is part o ...
'' (鬼鱼), extinct bony fish
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Guiyu (town)
Guiyu () is a town created from an agglomerate of four adjoined villages totalling 150,000 people in the Chaoyang district of Guangdong province in China. Situated on the South China Sea coast, Guiyu is perhaps best known in the global environme ...
(贵屿镇), town in Chaoyang District, Shantou, Guangdong, China
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