For the last few decades, colloidal and plasmonic nanomaterials have gone from simple quantum dots and metallic nanoparticles to more complex nanostructures such as core/shell, plasmonic-semiconductor hybrids, etc. Those novel nanomaterials emerged not only as interesting new scientific curiosities but also as promising new platforms for the development of new technologies, expanding from clean and renewable energy, biosensors to medicine. The scope of the symposium is based on recent results of nanoparticles preparation for photonic and biophotonic applications, linear and nonlinear optics in nanocomposite materials, new concepts and fabrication methods of colloidal nanomaterials and plasmonic waveguides, new techniques for plasmon characterization, magnetic, structural and electronic properties using novel probing tools and engineering of new nanostructures.