Miri Division is one of the twelve administrative divisions of Sarawak, Malaysia. It has a total area of 26,777.1 square kilometres, and is the second largest division after Kapit Division. The seat of this division is the city of Miri.
The population of Miri Division was 316,400. Ethnically, the population was Iban, Chinese, Malay, Melanau, Kayan, Kenyah, Lun Bawang and Kelabit. Due to the petroleum industry, there is also a large foreign worker population.
Miri Division consists of two districts: Miri and Marudi.
The economy is largely based on petroleum and natural gas extraction from both onshore and offshore wells, and related petroleum refining, liquefied natural gas and chemical production. Another major industry is timber processing from Miri's huge tropical rainforest. Processed wood products, rather than log export has been given priority by the government. Agriculture is includes oil palm, rubber, and pepper as the main products. Tourism, particularly ecotourism, is a growing component of the economy.