"Trench Art" is a genre of folk art comprised of items created in wartime, or from war materiel. It may be made by servicemen and women or by civilians, and is particularly associated with the First World War, which witnessed its greatest flowering.

Trench art refers to any decorative artwork that was created using debris or remnants and materials derived from the war by soldiers or civilians of any country caught in the conflict. Within the context of World War I, trench art included a variety of objects, with the most notable type of trench art being artillery shell trench art.