Abstract: Situated on the eastern Anatolia of Turkey, Lake Van basin with a microclimatic character has genetic resources of sour cherry. This study evaluated fruit characteristics of thirty sour cherry genotypes during 2002-2004. Sour cherry genotypes were selected from the population consisting of native seedling trees. Some physical and chemical traits of 30 promising genotypes were described in comparison with the standard cultivar Kutahya for future breeding efforts. They had a range of 2.01±0.09 to 5.19±0.18 g in fruit weight, 39.8-92.4 mm in fruit stalk length, 0.22±0.01-0.53±0.27 g in seed weight, 1.28-2.95% in acidity and 11.0-20.1% in soluble solid contents. The percentage of fruit cracking was 0% in all genotypes. The majority of genotypes had light-dark colored fruit skins, red colored fruit fleshes and free separating stones.