The International Workshop on Weak Interactions and Neutrinos has a history of more than 40 years and has taken place in Africa, Asia, Europe, North America, Oceania and South America. The 30th edition of the International Workshop on Weak interactions and Neutrinos (WIN2025) will be held in Sussex, UK from June 9-13, 2025. The purpose of the Workshop is to offer to the community a significant opportunity to assess the status of the field and to initiate collaborative efforts to address current physics questions. The workshop will focus on the following four main topics: