Companies should understand the events correctly and produce appropriate solutions within the framework of a good plan to protect and develop their current situation. For companies, the possibility of surviving is parallel with the accuracy of these predictions in increasing competition environment. According to this idea, demand forecast has vital importance for all companies. The purpose of the forecast is to predict situations companies may face in the future, using different data and techniques and take action in advance. Demand forecasting is to determine the demand level of a product or some products of a company for a specific time in the future. There are many methods used to forecast demand which are critical for companies. İn this study, explained demand forecasting methods and made literature survey.
Key Words: Demand forecasting, Literature survey.