Khobar is a city and governorate in the Eastern Province of the Kingdom of Saudi Arabia, situated on the coast of the Persian Gulf. With a population of 409,549 as of 2022 in the city core and 658,550 in the governorate, Khobar is part of the 'Triplet Cities' area, or Dammam metropolitan area along with Dammam and Dhahran, forming the residential core of the region.

The Eastern Province, also known as the Eastern Region, is the easternmost of the 13 provinces of Saudi Arabia. It is the nation's largest province by area and the third most populous after the Riyadh and Mecca provinces. In 2017, the population was 4,900,325. Of these, 3,140,362 were Saudi citizens and 1,759,963 were foreign nationals The province accounts for 15.05% of the entire population of Saudi Arabia and is named for its geographical location relative to the rest of the kingdom.