Cat Ba may refer to:
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Cát Bà Island
Cát Bà Island is the largest of the 367 islands spanning 260 km2 (100 sq mi) that comprise the Cat Ba Archipelago, which makes up the southeastern edge of Lan Ha Bay in Northern Vietnam. Cat Ba island has a surface area of 285 km2 (1 ...
, an island in Vietnam
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Cát Bà National Park
Cát Bà National Park is a World Heritage Site designated as a biosphere reserve in northern Vietnam. The park is part of Cát Bà Island in Hạ Long Bay and is administered by the city of Haiphong. The park is located approximately east of Ha ...
, a national park on Cát Bà Island
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Cát Bà (township) Cat Ba may refer to:
* Cát Bà Island, an island in Vietnam
* Cát Bà National Park, a national park on Cát Bà Island
* Cát Bà (township), the main town on Cát Bà Island
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, the main town on Cát Bà Island
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