A country characterized by lower average living standards, underdeveloped industries, lower gross domestic product (GDP), and lower gross national income (GNI) in comparison to developed countries is generally referred to as a developing country. Some countries with the world's largest economy are still considered developing countries because their GDP per capita is lower than that of countries generally considered developed. There is still an ongoing debate about the definition of a developing country. This study aims to find out the developing country's lean manufacturing sectors, compare the developing country's GDP with the USA, and evidence for implementing lean manufacturing in developing countries. The study is based on literary reviews and online resources provided by the university library and public databases. It finds that the adoption of lean manufacturing in developing countries is comparatively low. The industries of developing countries face challenges in adopting most of the lean tools because of socio-economic culture. Besides, this study also shows how implementing lean tools in developing countries helps with the growth of industry and GDP by reducing cost, time, and defects, and how to use non-utilized talents. With the help of lean manufacturing, developing countries can increase the market.