The Green Man Festival is an independent music, science and arts festival held annually in mid-August in the Brecon Beacons, Wales. Green Man has evolved into a 25,000 capacity week long event, showcasing predominantly live music (in particular alternative, indie, rock, folk, dance and Americana). The festival site is divided into 10 areas, hosting literature, film, comedy, science, theatre, wellness and family acts. It is also possible to stay for a week at the festival site, known as the Settlement, and explore the surrounding area.
The festival has expanded into other ventures, including setting up a charitable wing called the Green Man Trust and launching its own beer range called Green Man Growler.