Nikifor Alekseevich Begichev (Bigichev) (Russian: Никифор Алексеевич Бегичев (Бигичев); February 7 (N.S. February 19), 1874 – May 18, 1927) was a Soviet seaman and polar explorer. He was twice awarded gold medals by the Russian Academy of Sciences
He was a participant in Baron Eduard Toll's 1900–1903 "Russian Polar Expedition" as the bosun of ship Zarya. After the death of Baron Toll, Begichev took part in the research. During this voyage, he saved the life of his commander - lieutenant Aleksandr Kolchak, a future admiral. Walking by the sea ice, Kolchak fell in the split. When Begichev pulled him from the water, the lieutenant showed no signs of life. Begichev took off his dry clothes and dressed Kolchak with them. Then, to re-animate him, Begichev fired his pipe and put it in Kolchak's mouth. Kolchak opened his eyes.