High-entropy alloys are a rapidly evolving field of materials research and have gained increasing attention in recent years. Characterized by their multicomponent compositions, they were originally created by mixing a multitude of metallic elements and expanded the idea of traditional alloy design, opening new paths for materials research. In particular, the discoveries of superconductivity in some of these alloys since 2014 provided a new impetus for exploring novel superconducting phenomena and materials. In fact, the concept of increasing entropy in superconducting compounds, firstly restricted to alloys or intermetallics, was soon extended to other types of superconductors enriching drastically the research in the field. The high-entropy superconductors are nowadays a matter of intense study. This chapter provides a comprehensive review of the most recent and relevant research on the different types of high-entropy superconductors. The current state of research, synthesis methods, and characterization techniques are included. This information may serve as a reference for future research on this topic and inspire further exploration and innovation in the application of these materials.