Lorestan Province (Persian: استان لرستان, Ostān-e Lorestān) is a historic territory and province of western Iran, amidst the Zagros Mountains. The population of Lorestan was estimated at 1,716,527 people in 2006.
Lorestan covers an area of 28,392 km2. The major cities in this province are: Khorramabad, Borujerd, Aligoodarz, Dorood, Koohdasht, Azna, Alashtar, Noor Abad, Doh Rbh/Dowreh, and Pol-e-Dokhtar.