Ulua may refer to:
*
Ulúa River
The Ulúa River ( es, Río Ulúa, ) is a river in western Honduras. It rises in the central mountainous area of the country close to La Paz and runs approximately due northwards to the east end of the Gulf of Honduras at . En route, it is joine ...
*
San Juan de Ulúa
San Juan de Ulúa, also known as Castle of San Juan de Ulúa, is a large complex of fortresses, prisons and one former palace on an island of the same name in the Gulf of Mexico overlooking the seaport of Veracruz, Mexico. Juan de Grijalva's ...
, a complex located on an island of the same name in the Gulf of Mexico
*
USS ''Ulua'' (SS-428), a submarine of the United States Navy
*
''Ulua'' (fish), a genus of fishes in the family Carangidae
* vernacular name of the species
giant trevally (''Caranx ignobilis''), but not in genus ''Ulua'' proper
*
Ulua people, an indigenous people of
El Salvador and
Nicaragua
Nicaragua (; ), officially the Republic of Nicaragua (), is the largest country in Central America, bordered by Honduras to the north, the Caribbean to the east, Costa Rica to the south, and the Pacific Ocean to the west. Managua is the countr ...
.
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