Pavel Evgenjevič Demidov (also spelled Pavel Yevgenyevich Demidov; Павел Евгеньевич Демидов; 13 August 1971 – 23 August 2020) was a Russian speleologist, most known for his work in extreme cave exploration, especially as the leader of the Perovo-speleo team expeditions to Verëvkina cave on Arabika massif in Abkhazia, from 2017 the deepest cave in the world.