An heirloom plant, heirloom variety, heritage fruit (Australia and New Zealand), or heirloom vegetable (especially in Ireland and the UK) is an old cultivar of a plant used for food that is grown and maintained by gardeners and farmers, particularly in isolated communities of the Western world.

An heirloom tomato (also called heritage tomato in the UK) is an open-pollinated, non-hybrid heirloom cultivar of tomato.

The Heirloom Seal of the Realm, also known in English as the Imperial Seal of China, was a Chinese jade seal allegedly carved out of the Heshibi, a sacred piece of jade.