Pyotr Stepanovitch Pshennikov (Russian: Пётр Степанович Пшенников, Moscow, 28 January 1895 – Trosnyansky District, 28 December 1941) was a Soviet Lieutenant-General (1940).
On 19 August 1939, he was appointed commander of the newly formed 142nd Rifle Division of the Leningrad Military District.
At the start of the Second World War in June 1941, his 23rd Army was part of the Northern Front and fought without success against the Finnish invasion of the Karelian Isthmus.
Parts of the group were able to cross the Neva River and capture a bridgehead in the area of the village of Nevskaya Dubrovka, which became known as the Nevsky Pyatachok.
Fedorov from the Neva operational group in the Otradny district suffered heavy losses, and its commander died.