Najran (Arabic: نجران Najrān), is a city in southwestern Saudi Arabia. It is the capital of Najran Province. Today, the city of Najran is one of the fastest-growing cities in the kingdom of Saudi Arabia. As of the 2022 census, the city population was 381,431, with the population of the governorate of Najran being 592,300. Today, the population is primarily Ismaili with a Sunni minority.

The ancient city of Najran is now largely in ruins, the archaeological site Al-Okhdood, located south-east of the present-day city. In ancient times, this Najran was a major urban, agriculture, industrial (cloth, leather), and trade (incense) center, located in the midst of a fertile wadi (valley), called the Wadi Najran. Najran was also located at the intersection of two main caravan routes: one running from Hadhramaut, to the Hejaz, to the Eastern Mediterranean, and another running from the northeast through Al-Yamama and into Mesopotamia. The Christian community of Najran, which likely formed in the fifth century, played a major role in its known pre-Islamic history.