Sukhoy Nos is a cape on Severny, the northern island of the archipelago Novaya Zemlya, belonging to the Russian Federation. The site lies near the southern end of the island, very close to the Matochkin Strait, which separates Severny from Yuzhny, the southern island. It was known for being a site of nuclear testing for the former USSR, being the third detonating site of three on the two islands, as well as being the most northern.