Fordism is an industrial engineering and manufacturing system that serves as the basis of modern social and labor-economic systems that support industrialized, standardized mass production and mass consumption. The concept is named after Henry Ford. It is used in social, economic, and management theory about production, working conditions, consumption, and related phenomena, especially regarding the 20th century. It describes an ideology of advanced capitalism centered around the American socioeconomic systems in place in the post-war economic boom.

Fordism is "the eponymous manufacturing system designed to produce standardized, low-cost goods and afford its workers decent enough wages to buy them." It has also been described as "a model of economic expansion and technological progress based on mass production: the manufacture of standardized products in huge volumes using special purpose machinery and unskilled labor." Although Fordism was a method used to improve productivity in the automotive industry, the principle could be applied to any kind of manufacturing process. Major success stemmed from three major principles:

The principles, coupled with a technological revolution during Henry Ford's time, allowed for his revolutionary form of labor to flourish. His assembly line was revolutionary though not original as it had previously been used at slaughterhouses. His most original contribution to the modern world was breaking down complex tasks into simpler ones, with the help of specialised tools. Simpler tasks created interchangeable parts that could be used the same way every time. That allowed for a very adaptable flexibility, creating an assembly line that could change its constituent components to meet the needs of the product being assembled. In reality, the assembly line had existed before Ford, although not in quite the same effectiveness as he would create. His real accomplishment was recognizing the potential by breaking it all down into its components, only to build it back up again in a more effective and productive combination, thereby producing an optimum method for the real world.

The major advantages of such a change was that it cut down on the manpower necessary for the factory to operate, and it deskilled the labour itself, cutting down on costs of production.

There are four levels of Fordism, as described by Bob Jessop.

The Ford Motor Company was one of several hundred small automobile manufacturers that emerged between 1890 and 1910. After five years of producing automobiles, Ford introduced the Model T, which was simple and light but sturdy enough to drive on the country's primitive roads. The mass production of this automobile lowered its unit price, making it affordable for the average consumer. Furthermore, Ford substantially increased his workers' wages to combat rampant absenteeism and employee turnover, which approached 400% annually, which had the byproduct of giving them the means to become customers. That led to massive consumption. In fact, the Model T surpassed all expectations because it attained a peak of 60% of the automobile output within the United States.

The production system that Ford exemplified involved synchronization, precision, and specialization within a company.

Ford and his senior managers did not use the word "Fordism" themselves to describe their motivations or worldview, which they did not consider an "ism". However, many contemporaries framed their worldview as one and applied the name Fordism to it.