Formula E in the context of Diriyah ePrix

Diriyah (Arabic: الدِرْعِيّة, romanized: ad-Dir‘īyah, lit. 'place of armor'; formerly romanized as Dereyeh and Dariyya) is a town and governorate in Saudi Arabia. Located on the northwestern outskirts of the Saudi capital, Riyadh, Diriyah was the original home of the House of Saud, and served as the capital of the Emirate of Diriyah under the first Saudi dynasty from 1727 to 1818. Today, the town is the seat of the Diriyah Governorate, which also includes the villages of Uyayna, Jubayla, and Al-Ammariyyah, among others—and is part of Riyadh Province.

At-Turaif District, the first capital of Saudis in Diriyah, was declared a UNESCO World Heritage Site in 2010. The layout of the city itself can be studied in the National Museum of Saudi Arabia with the help of a large-scale detailed model of the city on display there. Diriyah also hosted the Diriyah ePrix race for the Formula E championship from 2018–2024.

Formula racing, also known as open-wheel racing in North America, is any of several forms of open-wheeled single-seater motorsport. A "formula", first devised by FIA for its post–World War II single-seater races, is a set of regulations for a given type of car. The best known are Formula One, Formula E, Formula Two, Formula Three, regional Formula Three and Formula Four. Common usage of "formula racing" encompasses other single-seater series, including the IndyCar Series and the Super Formula Championship.

Lower categories such as Formula Three and Formula Two are described as junior formulae, lower formulae, or feeder formulae, referring to their position below top-level series like Formula One on their respective career ladders of single-seater motor racing. There are two primary forms of racing formula: open formula, which allows a choice of chassis or engines; and control or "spec" formula, which specifies a single supplier for chassis and engines. Formula Three is an example of an open formula, while Formula BMW is a control formula. Exceptions include Formula Ford, which has an open chassis formula but a single-brand engine formula.