This article examines the public relations strategies in Nigeria by focusing on conflict resolution, peace-building, democracy and national development. Its arguments are based on a theoretical review of literature on public relations strategies, conflict resolution, peace-building, democracy and national development. The article suggests an in-depth investigation of the nature of some major problems of public relations strategies in Nigeria and contributes to a better understanding of the concept. The nature of the analysis is more exploratory than definitive and specific investigations are needed to thoroughly explore and better theorise public relations strategies for conflict resolution, peace-building, democracy and national development. This trend requires drastic public awareness and enlightenment to minimise the degree of conflict, promote peace and democracy in the society in order to facilitate rapid national development. This paper recognised the relevance of peace-building and democracy as veritable tools for conflict resolution and national development. It also reviewed some concepts such as peace education, conflict and democracy, causes and consequences of conflict and conflict resolution strategies. The paper suggested important useful strategies to resolving conflicts, promote peace and democracy through regular advocacy for tolerance by Civil Society Organizations, Policy Makers, Government Institutions, Security Agencies and Traditional Institutions to educate their subjects on the need for maintaining peace in their different domains, using mutual understanding and the bottom-top approach.