Stepan Petrovich Krasheninnikov was a Russian explorer of Siberia, naturalist and geographer who gave the first full description of Kamchatka in the early 18th century. He was elected to the Russian Academy of Sciences in 1745. The Krasheninnikov Volcano on Kamchatka is named in his honour.
Stepan Andreevich Neustroev was a Soviet officer, commander of the 1st Battalion in the 756th Regiment of the 150th Rifle Division. His unit stormed the Reichstag.
Stepan Nikitich Begichev (Russian: Бегичев, Степан Никитич) was a Russian Empire colonel and memoirist, brother of Dmitry Begichev and Yablochkova Elizaveta
Stepan Maximovich Petrichenko was a Russian revolutionary, an anarcho-syndicalist politician, the head of the self-styled "Soviet Republic of Soldiers and Fortress-Builders of Nargen" and in 1921, de facto leader of the Kronstadt Commune, and the leader of the revolutionary committee which led the Kronstadt rebellion of 1921.
Stepan Petrovich Beletsky was a Russian statesman in the Russian Empire and the Head of the Police Department and involved in scandals around Grigori Rasputin. In January 1914 he was appointed as senator in the State Council.