Su Kahriz (Persian: سوكهريز, also Romanized as Sū Kahrīz; also known as Sokārīz, Sū Kahrez, Sukakhrez, and Sū Kārīz) is a village in Khorramdarreh Rural District, in the Central District of Khorramdarreh County, Zanjan Province, Iran. At the 2006 census, its population was 2,206, in 536 families.