Distributive justice concerns the socially just allocation of resources, goods and opportunities in a society. It is concerned with how to allocate resources fairly among members of a society, taking into account factors such as wealth, income, and social status. Often contrasted with just process and formal equal opportunity, distributive justice concentrates on outcomes (substantive equality). This subject has been given considerable attention in philosophy and the social sciences. Theorists have developed widely different conceptions of distributive justice. These have contributed to debates around the arrangement of social, political and economic institutions to promote the just distribution of benefits and burdens within a society. Most contemporary theories of distributive justice rest on the precondition of material scarcity. From that precondition arises the need for principles to resolve competing interest and claims concerning a just or at least morally preferable distribution of scarce resources.

In social psychology, distributive justice is defined as perceived fairness of how rewards and costs are shared by (distributed across) group members. For example, when some workers work more hours but receive the same pay, group members may feel that distributive justice has not occurred. To determine whether distributive justice has taken place, individuals often turn to the behavioral expectations of their group. If rewards and costs are allocated according to the designated distributive norms of the group, distributive justice has occurred.

Five types of distributive norm are defined by Donelson R. Forsyth:

The listed theories below are some of the most prominent theories within the field. With this in mind, the list is in no way to be considered exhaustive for distributive justice theory.

In his book A Theory of Justice, John Rawls outlines his famous theory about justice as fairness. The theory consists of three core components:

Building a modern view on social contract theory, Rawls bases his work on an idea of justice being rooted in the basic structure, constituting the fundamental rules in society, which shape the social and economic institutions, as well as the governance. This basic structure is what shapes the citizens' life opportunities. According to Rawls, the structure is based on principles about basic rights and duties that any self-interested, rational individual would accept in order to further his/her own interests in a context of social cooperation.

Rawls presents the concept of an original position as a hypothetical idea of how to establish "a fair procedure so that any principles agreed on will be just." In his envisioning of the original position, it is created from a judgement made through negotiations between a group of people who will decide on what a just distribution of primary goods is (according to Rawls, the primary goods include freedoms, opportunities, and control over resources). These people are assumed to be guided by self-interest, while also having a basic idea of morality and justice, and thus capable of understanding and evaluating a moral argument. Rawls then argues that procedural justice in the process of negotiation will be possible via a nullification of temptations for these people to exploit circumstances so as to favor their own position in society.

This nullification of temptations is realised through a veil of ignorance, which these people will be behind. The veil prevents the people from knowing what particular preferences they will have by concealing their talents, objectives, and, most importantly, where in society they themselves will end up. The veil, on the other hand, does not conceal general information about the society, and the people are assumed to possess societal and economic knowledge beyond the personal level. Thereby, such veil creates an environment for negotiations where the evaluation of the distribution of goods is based on general considerations, regardless of place in society, rather than biased considerations based on personal gains for specific citizen positions. By this logic, the negotiations will be sensitive to both those who are worst off, given that a risk of being in that category yourself will incentivize protection of these people, but also the rest of society, as one would not wish to hinder maximal utilisation for these in case you would end up in higher classes.