Custard apple is a common name for several fruits and may refer to Annonaceae, the custard apple family, which includes the following species referred to as custard apples:

• Annona cherimola, a tree and fruit also called cherimoya
• Annona muricata, a tree and fruit also called guanábana or soursop
• Annona reticulata, a tree and fruit also called custard apple, ox heart or bullock's heart
• Annona senegalensis, a tree and fruit called wild custard-apple
• Annona squamosa, a tree and fruit also called sugar apple or sweetsop
• Asimina triloba, the "pawpaw", a deciduous tree, with a range from southern Ontario to Texas and Florida, that bears the largest edible fruit native to the United States or Canada.