MMC Norilsk Nickel is a Russian nickel and palladium mining and smelting company. Its largest operations are located in the Norilsk–Talnakh area near the Yenisei River, in northern Russia. It also has holdings near the Kola Peninsula at Nikel, Zapolyarny, and Monchegorsk; in western Finland at Harjavalta; in southern Africa in Botswana and South Africa; and in western Australia. MMC stands for "Mining and Metallurgical Company".

Norilsk Nickel is headquartered in Moscow and is the world's leading producer of nickel and palladium. It is ranked among the top ten copper producers.

The company is listed on MICEX-RTS. The key shareholders are Vladimir Potanin's Interros and Oleg Deripaska's Rusal: each reportedly owns over 25% of shares. In December 2010, Norilsk offered to buy out Rusal's share for US$12 billion, but the offer was declined.

Official site.