Nizhnekamskneftekhim (), abbreviated NKNK, is a large petrochemical company and largest specialized company in Europe headquartered in the city of Nizhnekamsk, Russia.
It is the largest producer of synthetic rubber and plastics in Russia. The company was established in 1967, and employs over 17,000 people.
In 2022 the company's revenue amounted to 257 billion rubles.
Since 2023 the company's CEO has been Marat Inilovich Falyakhov.