Lev Tsenkovsky

| birth_place = Warsaw, Congress Poland, Russian Empire | death_date = | death_place = Leipzig, Kingdom of Saxony, German Empire | alma_mater = Saint Petersburg Imperial University }}

Lev Semyonovich Tsenkovsky, also Leon Cienkowski (; ) was a Russian botanist, protozoologist, and bacteriologist. He was a corresponding member of the Saint Petersburg Academy of Sciences (1881).

Lev Tsenkovsky graduated from Saint Petersburg Imperial University in 1844. As a professor, he taught at the Demidov Lyceum in Yaroslavl (1850-1854), Saint Petersburg University, Imperial Novorossiya University in Odessa (1865-1871), and Imperial Kharkov University (1872-1887). Lev Tsenkovsky was one of the pioneers of the ontogenetic method of studying lower plants and lower animals. Also, he was developing a concept on genetic unity of flora and fauna. Tsenkovsky was one of the advocates of the teachings of Charles Darwin. He is known to have suggested methods of developing an effective anthrax vaccine. Lev Tsenkovsky contributed to the organization of the first vaccination station in Kharkov in 1887. Provided by Wikipedia