Locust tree can mean:
- Or less commonly, "African locust bean tree" (Parkia biglobosa), which is also known as néré
- Also not commonly, the carob tree, Ceratonia siliqua, whose pods are called locust beans.
In North America and Greece the term "locust" (gr. akris) was applied to the pods of the carob tree, that somehow resemble the insect. By extension many other pod carrying trees have been called "locust tree". 
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