Taif (Arabic: اَلطَّائِفُ‎, romanized: Aṭ-Ṭāʾif, lit. 'The circulated or encircled', Hejazi Arabic pronunciation: [atˤˈ tˤaː(j)ɪf]) is a city and governorate in Mecca Province in Saudi Arabia. Located at an elevation of 1,879 m (6,165 ft) in the slopes of the Hijaz Mountains, which themselves are part of the Sarat Mountains, the city has a population of 563,282 people in 2022, making it one of the most populous cities in the kingdom.

There is a belief that Taif is indirectly referred to in Quran 43:31. The city was visited by the Islamic prophet Muhammad, sometime in the early 7th century, and was inhabited by the tribe of Banu Thaqif. It is still inhabited to this day by their descendants. As a part of the Hejaz, the city has seen many transfers-of-power throughout its history, with the last being during the Saudi conquest of Hejaz in 1925.

The city has been called the unofficial summer capital of Saudi Arabia and has also been called the best summer destination in Saudi Arabia as it enjoys a moderate weather during summer, unlike most of the Arabian Peninsula. The city owes its popularity among tourists to its many mountain resorts and moderate climate, even during the harsh summers of Arabia. The city is connected to the nearby resort town of Al-Hada via the iconic Highway 15 (Taif – Al-Hada Road). It stands out from the rest of the Hijazi region as it is a city that plays an active role in the agricultural output of Saudi Arabia and is the center of an agricultural area known for its cultivation of grapes, pomegranate, figs, roses and honey. Taif is also very active in the manufacturing of traditional attar, and is known locally as "City of the Roses" (Arabic: مَدِيْنَة ٱلْوُرُوْد, romanized: Madīnat al-Wurūd). Taif also hosts the historic Souq 'Okaz.

The Taif governorate is divided into 15 smaller municipalities, with Ta'if as the capital. The administration of the city itself is carried out by five municipalities, named North Taif, West Taif, East Taif, South Taif and New Taif. Taif is served by the Taif International Airport, with a larger international airport planned to open by 2030.

Much like many of the cities in the Hejazi region, the city of Ta'if had an older name: Wajj (وَجّ). This was also the name of the Valley of Wajj, a significant valley within Arabian and Islamic history.

The etymology of the city's current name, Taʾif (Arabic: اَلطَّائِفُ), comes from the Arabic root ط و ف, which could translate to "wanderer", "roamer", or "circulator"; the latter of which is the basis of the word Ṭawāf (طَوَاف), which literally translates to "circulation" or "circumambulation", and is used in the context of the circumambulation of the Kaaba.

Taʾif was given this name due to the wall that was built by the tribe of Banu Thaqif that circulated the city. In short, the city of Taʾif literally means the circulated or encircled city.^{[citation needed]}

In the 6th century A.D., the city of Ta'if was dominated by the Thaqif tribe, which still lives in and around the city of Ta'if today. It has been suggested that Jewish tribes who were displaced in the wars of the Himyarite Kingdom by Ethiopian Christians settled near Ta'if. The walled city was a religious centre as it housed the idol of the goddess Lāt, who was then known as "the lady of Ta'if." Its climate marked the city out from its dry and barren neighbours closer to the Red Sea. Wheat, vines and fruit orchards were grown around Ta'if, and this is how the city earned its title "the Garden of the Hejaz." Both Ta'if and Mecca were resorts of pilgrimage. Ta'if was more pleasantly situated than Mecca itself, and their people of Ta'if had close trading relations. The people of Ta'if carried on agriculture and fruit‑growing in addition to their trade activities.