Klub Jagielloński, also known as the Jagiellonian Club, is a Polish non-partisan association with republican roots. It serves as an educational institution, media outlet, think tank, and citizens movement. The club is dedicated to the idea of the New Christian Democracy, which is based on the principles of Republicanism, Conservatism, and Catholic Social Teaching.

As an environment, Klub Jagielloński engages in various activities. They provide opinions, analyses, and essays on their website and in their concept magazine Pressje, covering current events and delving into topics that are often neglected in mainstream public debate. They also run a YouTube channel and produce four podcasts on political matters.

In addition, Klub Jagielloński organizes open debates, meetings, seminars, and lectures all around Poland, aiming to lead civic education and foster discussions on important issues. They also operate the Jagiellonian Club Analysis Centre, which focuses on providing advanced diagnoses and solutions to significant issues in Polish public life. To combine their expertise, patriotism, and new technologies, Klub Jagielloński has developed a mobile application called Pola.

This app allows users to verify the origin of products they purchase, promoting the support of Polish goods. Overall, Klub Jagielloński plays a crucial role in shaping the political landscape of Poland through its multifaceted approach and commitment to the principles of the New Christian Democracy