Qostin Lar
 Qostin Lar (Persian: قسطين لار‎ also Romanized as Qosţīn Lār Ghostin Lar and Qostīn-e-Lār) is a village in Rudbar-e Mohammad-e Zamani Rural District Alamut-e Gharbi District Qazvin County Qazvin Province Iran. At the 2006 census its population was 175 in 50 families.