Count Peter[a] Ivanovich Shuvalov (Russian: Пётр Иванович Шувалов, romanized: Pëtr Ivanovič Šuvalov; 1711 – 15 January [O.S.

He invented a special canister-shooting gun with an oval bore, called "secret howitzer", which had a limited success; his more useful addition to Russian artillery were licornes, a kind of gun-howitzers, which remained in service for almost hundred years.

He enjoyed unlimited power throughout the reign of Elizabeth due to his wife's and cousin Ivan Ivanovich Shuvalov's influence on the empress.

In 1753, Shuvalov presented before the Governing Senate a project for eliminating internal customs offices and outposts and increasing tariffs on imported goods, instead.

For example, Shuvalov obtained for himself an exclusive right to export lumber, lard, blubber oil and monopolized the seal trade.