Sarcoscypha coccinea, commonly known as the scarlet elf cup, or the scarlet cup, is a species of fungus in the family Sarcoscyphaceae of the order Pezizales. The fungus, widely distributed in the Northern Hemisphere, has been found in Africa, Asia, Europe, North and South America, and Australia. The type species of the genus Sarcoscypha, S. coccinea has been known by many names since its first appearance in the scientific literature in 1772. Phylogenetic analysis shows the species to be most closely related to other Sarcoscypha species that contain numerous small oil droplets in their spores, such as the North Atlantic island species S. macaronesica. Due to similar physical appearances and sometimes overlapping distributions, S. coccinea has often been confused with S. occidentalis, S. austriaca, and S. dudleyi.

Sarcoscypha is a genus of ascomycete fungus and a type genus of the family Sarcoscyphaceae. Species of Sarcoscypha are present in Europe, North America and tropical Asia. They are characterised by a cup-shaped apothecium which is often brightly coloured. They have had a range of popular uses, one of which was as a table decoration. Some members of the family such as S. coccinea and the - according to new knowledge - more common S. austriaca in western Europe and United States have bright scarlet apothecia which have given them familiar names such as the scarlet cup fungus and scarlet elf cap.