Social realism is work produced by painters, printmakers, photographers, writers, filmmakers and some musicians that aims to draw attention to the real socio-political conditions of the working class as a means to critique the power structures behind these conditions. While the movement's characteristics vary from nation to nation, it almost always uses a form of descriptive or critical realism.

The term is sometimes more narrowly used for an art movement that flourished in the interwar period as a reaction to the hardships and problems suffered by common people after the Great Crash. In order to make their art more accessible to a wider audience, artists turned to realist portrayals of anonymous workers as well as celebrities as heroic symbols of strength in the face of adversity. The goal of the artists in doing so was political as they wished to expose the deteriorating conditions of the poor and working classes and hold the existing governmental and social systems accountable.

Social realism should not be confused with socialist realism, the official Soviet art form that was institutionalized by Joseph Stalin in 1934 and was later adopted by allied Communist parties worldwide. It is also different from realism as it not only presents conditions of the poor, but does so by conveying the tensions between two opposing forces, such as between farmers and their feudal lord. However, sometimes the terms social realism and socialist realism are used interchangeably.

Social realism, as an art movement that became prominent in the United States in the interwar period, as a reaction to the increasing hardship for ordinary people, was influenced by the social realist tradition in France which had existed for decades.

Social realism traces back to 19th-century European Realism, including the art of Honoré Daumier, Gustave Courbet and Jean-François Millet. Britain's Industrial Revolution aroused concern for the poor, and in the 1870s the work of artists such as Luke Fildes, Hubert von Herkomer, Frank Holl, and William Small were widely reproduced in The Graphic.

In Russia, Peredvizhniki or "Social Realism" was critical of the social environment that caused the conditions pictured, and denounced the Tsarist period. Ilya Repin said that his art work aimed "to criticize all the monstrosities of our vile society" of the Tsarist period. Similar concerns were addressed in 20th-century Britain by the Artists' International Association, Mass Observation and the Kitchen sink school.

Social realist photography draws from the documentary traditions of the late 19th century, such as the work of Jacob A. Riis, and Maksim Dmitriyev.

In about 1900, a group of Realist artists led by Robert Henri challenged the American Impressionism and academics, in what would become known as the Ashcan school. The term was suggested by a drawing by George Bellows, captioned Disappointments of the Ash Can, which appeared in the Philadelphia Record in April 1915.