Narodowy Instytut Onkologii im. Marii Skłodowskiej, also known as the Maria Sklodowska-Curie National Research Institute of Oncology, is a renowned institution in Warsaw, Poland that focuses on cancer research. With branches in Cracow and Gliwice, the institute conducts cutting-edge studies to understand the causes and mechanisms of cancer development.

Their research covers various areas, including the role of epigenetics and Micro-RNAs in carcinogenesis, new therapeutic targets for anti-tumor therapies, and the carrier status of known genes predisposing to different types of cancer. They also conduct population-based assessments and create animal models to test new target drugs. In addition to research, the institute provides highly specialized diagnostics, therapies, and rehabilitation for cancer patients.

The facilities are equipped with modern radiotherapy and diagnostic departments, as well as specialist clinics. The institution also undertakes multi-center-based clinical studies to assess the value of different treatments and the quality of life for patients with various types of cancer. With a history spanning 85 years, the institute was established by Maria Sklodowska-Curie in 1921.

It has since become a leading cancer center in Poland, known for its clinical work, basic research, and teaching. Despite facing challenges during World War II, the institute was rebuilt and continues to provide valuable services in the fight against cancer