Hygrocybe aurantiosplendens, commonly known as the orange waxcap, is a gilled fungus in the family Hygrophoraceae.

It mainly occurs in Europe, but is also found in Siberia, and on both the East and West coasts of North America.

Although Hygrocybes have been thought of as saprotrophic, new evidence points to a biotrophic or symbiotic association with moss.

The British Isles and Scandinavia appear to be the regions with the greatest abundance of H. aurantiosplendens,[3] but it also occurs in Finland, Iceland, Western Russia and high elevations in Southern Europe.

In Eastern North America its range extends sporadically from Maine south to Florida and west to Northern Wisconsin.

On the West Coast it is largely restricted to coastal regions from Northern Washington to Central California,[1][3] however this western form may be distinct enough to be considered its own species.