Ryumin

Ryumin (Рюмин) is a Russian masculine surname, its feminine counterpart is Ryumina. It may refer to
 * Bestuzhev-Ryumin (disambiguation)
 * Mikhail Ryumin (1913–1954), Deputy Head of the Soviet Ministry of State Security
 * Valery Ryumin (1939–2022), Soviet cosmonaut