The Edinburgh Festival is a collective term for many arts and cultural festivals that take place in Edinburgh, Scotland each summer, mostly in August. Though the festivals are put on by various organizations unrelated to each other, and so are officially separate events, they are regarded by many visitors as part of the same event; and together they form the largest annual cultural festival in the world.

The original, and still the largest, component festivals are the Edinburgh International Festival and the Edinburgh Festival Fringe; the latter is in its own right larger than any other similar event in the world.

The Scottish International Festival (EIF) was established in 1947 in a post-war effort to "provide a platform for the flowering of the human spirit". That same year, eight theatrical companies "gatecrashed" the official Festival by organizing their own event, outside the official auspices of the EIF; this started the movement which grew into the Edinburgh Festival Fringe (EFF). The EFF is also referred to as the Edinburgh Fringe, the Fringe, or (incorrectly) the Edinburgh Fringe Festival.

Edinburgh (ⁱ/ˈɛdɪnbʌrə/ ED-in-burr-ə; Scottish Gaelic: Dùn Èideann) is the capital city of Scotland and the seat of the Scottish Parliament. It is the second largest city in Scotland and the seventh most populous in the United Kingdom. The City of Edinburgh Council governs one of Scotland's 32 local government council areas. The council area includes urban Edinburgh and a 30 square miles (78 km²) rural area. Located in the south-east of Scotland, Edinburgh lies on the east coast of the Central Belt, along the Firth of Forth, near the North Sea.

The city was one of the historical major centres of the Enlightenment, led by the University of Edinburgh, helping to earn it the nickname Athens of the North. The Old Town and New Town districts of Edinburgh were listed as a UNESCO World Heritage Site in 1995 in recognition of the unique character of the Medieval Old Town and the planned Georgian New Town. It covers both the Old and New Towns together with the Dean Village and the Calton Hill areas. There are over 4,500 listed buildings within the city. In May 2010, it had a total of 40 conservation areas covering 23% of the building stock and 23% of the population, the highest such ratios of any major city in the UK. In the 2011 mid-year population estimates, Edinburgh had a total resident population of 495,360.