This book comprehensively explores the field of plasmonic nanomaterials and their significant impact on organic synthesis and catalysis. It provides an in-depth understanding of the characterization techniques used for studying these unique materials. It emphasizes the role of plasmonic nanomaterials as efficient catalysts in organic synthesis, showcasing their ability to enhance reaction rates and selectivity. It covers a wide range of organic reactions, including carbon–carbon and carbon–heteroatom bond formation, oxidation, reduction, and so on. It presents detailed case studies and examples that illustrate the successful application of plasmonic nanomaterials in these catalytic processes. The book is a valuable resource for researchers, students, and professionals interested in the synthesis, characterization, and applications of plasmonic nanomaterials in organic chemistry and catalysis.