The International Whaling Commission (IWC) held a technical workshop on Bycatch Mitigation Opportunities in the Western Indian Ocean and Arabian Sea from 8-9 May 2019 in Nairobi, Kenya. The workshop was attended by 50 participants working in 17 different countries, with half of the participants coming from within the Indian Ocean region. Workshop participants included national government officials working in marine conservation and fisheries management, cetacean and fisheries researchers, fisheries technologists, socio-economists and representatives from Regional Fisheries Management Organisations (RFMOs), inter- and non-governmental organisations. The focal region of the workshop extended from South Africa, north to the Arabian Sea and east to Sri Lanka, including coastal areas, national waters and high seas. The primary objectives of the workshop were to (i) develop a broad-scale picture of cetacean bycatch across the North and Western Indian Ocean region in both artisanal and commercial fisheries; (ii) explore the challenges and opportunities related to the monitoring and mitigation of cetacean bycatch in the western and northern Indian Ocean (Arabian Sea); (iii) identify key gaps in knowledge and capacity within the region and tools needed address these gaps; (iv) introduce the Bycatch Mitigation Initiative (BMI) to Indian Ocean stakeholders and assess how the initiative can be of use; (v) identify potential locations which could serve as BMI pilot projects; (vi) start building collaborations to tackle bycatch at national, regional and international level.