Nano ferrites, a class of magnetic nanoparticles, have emerged as multifunctional materials with exceptional optical properties and a wide range of potential applications. This article provides an overview of the optical characteristics of Nano ferrites, including their absorption, emission, and nonlinear optical behavior. It explores their unique magnetic properties that influence optical responses and delves into the synthesis techniques that enable precise control over their size, shape, and composition. Furthermore, the review discusses the diverse applications of Nano ferrites in fields such as biomedicine, energy harvesting, information technology, and environmental remediation. By shedding light on the optical prowess and versatile applications of Nano ferrites, this article aims to inspire further research and innovation in this promising area of nanomaterials science.