Billions of people use social media every day. Many of them discuss political topics online. Radicalisation, extreme speech, and in particular, online misogyny against politically active women, have become alarming negative features of online discussions. In this interdisciplinary project, mixed method approaches to three case studies in Germany, India, and Brazil will be employed to better understand the content and dynamics of online misogyny against politically active women and to develop methods for early identification of such emerging dynamics. The project team will collaborate with subject matter experts in India and Brazil as well as with media partners and affected female politicians. With citizen social science tools, the scientists will involve the general public in the process of identifying emerging campaigns of online misogyny against politically active women. This project will also develop policy briefs and regulatory approaches to address online misogyny.