John Galsworthy is one of the important modern playwrights. His plays have unique social implications. His very themes are family relationships, social injustice, social deterioration, caste feeling with morality and tragedy of idealism. This paper is an attempt to show social injustice in the select plays of Galsworthy. We will discuss three plays which brought the social injustice before us. They are “The Silver Box”, “The Show” and “The Forest”. In “The Silver Box” we find the mechanical, almost unconscious favoring of the rich at the expense of the poor in a court of law. “The Show” demonstrates how acute may be the suffering and wrong inflicted on private individuals through the needless gratifying of public curiosity by means of Press and other ways. “The Forest” is about the Pounce of nature, and the ways in which that pounce may still persist in what we call civilization, illustrated by an exposure of some of the methods by which extensive swindling may take place in the regions of high finance.