Breadnut may refer to:
* ''
Artocarpus camansi
''Artocarpus camansi'', the breadnut, is a species of medium-sized tree in the family Moraceae. It is native to New Guinea, the Maluku Islands, and the Philippines. . It is the wild ancestor of the breadfruit (''Artocarpus altilis'') and i ...
'', a close relative of the breadfruit
* ''
Brosimum alicastrum'', also known as "Maya nut" or ''ramón'', theorized to be a staple crop for the ancient Maya
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