Säteilyturvakeskus/Radiation and Nuclear Safety Authority (STUK)
- Address: Säteilyturvakeskus, Laippatie 4, 00880 Helsinki (PL 14, 00881 Helsinki), Finland
- Website: www.stuk.fi
The Radiation and Nuclear Safety Authority (STUK) is a regulatory authority, research centre and expert organisation whose mission is to protect people, society, the environment and future generations from the harmful effects of radiation. STUK is well-known and respected as an expert organisation and research centre, as an independent regulator dedicated to safety, and as an influential national and international actor.