Markazi Province is one of the 31 provinces of Iran. The word Markazi means central in Persian. In 2014 it was placed in Region 4. Markazi lies in western Iran. Its capital is Arak. Markazi province is one of industrial regions of Iran. The economy is composed of service, industrial and agricultural sectors, respectively. Many mother industries such as petrol, petrochemicals, and metals are concentrated in the province. There are many potentialities in Markazi Province based on ecotourism, rural and nomadic tourism.