Trametes hirsuta, commonly known as hairy turkey tail or hairy bracket, is a species of fungus.

 The cap is up to 15 cm wide, exceptionally 30 cm. It is whitish gray, with short hairs and subtle zoning, sometimes tomentose and yellowish or darker near the margin. The flesh is tough, up to 5 mm thick, with a soft gray upper layer and a whitish lower layer separated by a black plane. It is too tough for consumption.

Similar species: Similar species include T. pubescens, which is unzoned, buff in colour, and without layered flesh. T. versicolor is more distinctively zoned. T. occidentalis appears to be closely related.

Ecology: It is found on dead wood of deciduous trees, especially beechwood. It is found all year round, persisting due to its leathery nature.

Biotechnology: Lyophilized cell cultures of Trametes hirsuta yield aldehydes from alkenes, representing a biotransformation alternative to ozonolysis.