This paper provides an overview of pay transparency legislations within the wider set of policies to reduce the gender pay gap. It offers a detailed mapping of existing legislations in those countries that have enacted pay transparency legislations, and assesses the impacts of these legislations on the gender pay gap and on broader labour market considerations. Furthermore, the paper examines the views of workers' and employers' organizations and arguments both in favour and against pay transparency legislations, while illustrating the role of employers' and workers' organizations based on an online ILO survey conducted with representative employers' and workers' organizations.