The article analyses the population's attributable mortality risk on selected malignant neoplasms in 2016 that could be attributed to excessive BMI in the Czech population, taking into account the eight-year gap between exposure and cancer mortality by gender. In Czechia there were 1,902 deaths in 2016 (7% of all malignant neoplasm cases) diagnosed as due to one of the selected types of neoplasms as a result of a long-term high BMI.