There are three types of national elections in the Czech Republic which are:
Senate: occurs every 2 years. The first election was held in 1996 and the last one was in 2022.
Chamber of Deputies: occurs every 4 years. The first election was held in 1899 and the last one was in 2021.
Presidential: occurs every 5 years. The first election was held in 1971 and the last one was in 2023.