Eleven leaf-miner tephritid fly species from 7 genera are reviewed for four regions in the south-eastern part of West Siberia, Russia, namely Tomskaya and Kemerovskaya Oblasts, Altaiskii Krai, and Republics of Altai and Khakassia. The share of leaf-miner species in the tephritid fly fauna of the region is 10.2%. Cornutrypeta svetlanae Richter & Shcherbakov, 2000, recorded from four regions, is the most numerous and widely distributed species preferring forest belt in the mountains of Kuznetskii Alatau (Kemerovskaya Oblast and Khakassia), North Altai (Republic of Altai) and West Altai (Altaiskii Krai). Two species are registered in only one region, namely Cornutrypeta spinifrons (Schroeder, 1913) in the forest belt of the Kuznetskii Alatau mountains (Kemerovskaya Oblast) and Hemilea dimidiata (Costa, 1844) in the forest meadows of Tomskaya Oblast. The rarest species in the region are Cornutrypeta spinifrons (Schroeder, 1913) and Trypeta zoe Meigen, 1826 known by single or several specimens only. Comments on the distribution and trophic relation of all the species are provided.