Nikita Pustosvyat (Russian: Никита Пустосвят, real name Nikita Konstantinovich Dobrynin (Никита Константинович Добрынин); died June 11, 1683) was one of the leaders of the Russian Old Believers during Raskol.
He was dubbed Pustosvyat ("hollow saint") by adherents of Patriarch Nikon.
Nikita was a priest in Suzdal and participated in editing of church books under Patriarch Joseph.
In 1659, Nikita arrived to Moscow and lodged a complaint about Stefan, Archbishop of Suzdal, accusing him of digression from Orthodoxy.
[1] Pustosvyat achieved a July 5, 1682 church debate in the presence of the tsar.