Reindeer (Rangifer tarandus) traditionally inhabit the circumpolar territories. However, in recent years, about ten reindeer farms have been created in the Leningrad Region, in which imported animals began to breed. Freshly excreted feces of calves were collected in the ethnic park Lesnaya Izbushka and in the zoo Shishki Na Lampushke in the summer of 2019 and on the day of sampling they were delivered to the Laboratory for the Study of Parasitic Diseases at the Department of Parasitology of the St. Petersburg State Academy of Veterinary Medicine. Ovoscopy was performed according to the Darling`s technique and sequential washes, larvoscopy was performed according to the Wajda`s technique, and helminthoscopy was performed by macroscopic examination of feces. Nematodes were found in young reindeer from the Lesnaya Izbushka ethnic park: Strongylida (eggs), Capillaria sp. (eggs) and Elaphostrongylus rangiferi (larvae of the first stage). The same helminths were found in the parent herd. In a calf born in 2019 at the zoo Shishki Na Lampushke, no helminthes were found. Since parasitic worms require a certain time from the moment of invasion of the host to the beginning of reproduction, it is necessary to continue monitoring the reindeer. All helminths found in young reindeer are not dangerous to humans.