Ulua may refer to:
- Ulúa River
- San Juan de Ulúa, 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.
This disambiguation page lists articles associated with the title Ulua.
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