Bovine diarrhea virus (BDV) is widespread throughout the European part of the Russian Federation. The BDV genome is detected in around 40% of animals (aged up to 18 months) with lesions in the gastrointestinal tract and respiratory system. It can be found in all intestinal sections, including its contents and feces, in lymphoid and respiratory organs as well as in nasal washings and discharges and in vaginal tunic discharges of cows. Primary structure analysis of 5'-untransalted region of the genome of the detected isolates revealed that all of them belonged to genotype 1. Phylogenetic analysis confirmed that a part of isolates belonged to subgenotype 1a, while most isolates make up a separate group. No geographic differences were reported in the circulation of the BDV genetic variants within Russia's territory.