Glastonbury Festival (formally Glastonbury Festival of Contemporary Performing Arts) is a five-day festival of contemporary performing arts that takes place in Pilton, Somerset, England. In addition to contemporary music, the festival hosts dance, comedy, theatre, circus, cabaret, and other arts. Leading pop and rock artists have headlined, alongside thousands of others appearing on smaller stages and performance areas. Films and albums recorded at Glastonbury have been released, and the festival receives extensive television and newspaper coverage. Glastonbury is now attended by around 200,000 people, requiring extensive infrastructure in terms of security, transport, water, and electricity supply. The majority of staff are volunteers, helping the festival to raise millions of pounds for charity organisations.

Glastonbury Festival was held intermittently from 1970 until 1981; since then, it has been held every year, except for "fallow years" taken mostly at five year intervals, intended to give the land, local population, and organisers a break. 2018 was a "fallow year" and the following festival took place from 26 – 30 June 2019.