This brief provides an overview of the background, drivers, enablers and the impact of hate speech and identifies strategies to counter it, with a focus on the role of parliaments as a positive force for change. Of particular relevance are the concrete actions parliaments can take to address and mitigate the prevalence and impact of hate speech on those who are most vulnerable in society, including women, minorities and other underrepresented groups. The objective of this brief is to provide meaningful and practical guidance for parliaments and parliamentarians, as well as those who programmatically support them, on steps they can take to reduce and counter hate speech while fostering peace, constructive dialogue and trust.