 Organic corrosion inhibitors are compounds that are used to reduce or prevent corrosion by forming a protective film on metal surfaces. These compounds have been studied extensively for their potential applications in industry. Natural and synthetic organic corrosion inhibitors have been investigated in detail, including their classification, active functional groups, and efficiency estimations. Additionally, previous studies on the use of natural and synthetic organic inhibitors have been discussed, as well as adsorption isotherms and mechanisms of organic corrosion inhibitors. Finally, the kinetics of corrosion modeling were discussed, providing insight into the effectiveness of organic inhibitors at reducing corrosion. This article was authored by Ahmed A. Alayneuri, Juan Nor Rooslam 1 isohack and Walid Khalid al-Azai.