Communitarianism is a philosophy that emphasizes the connection between the individual and the community. Although the community might be a family unit, communitarianism usually is understood, in the wider, philosophical sense, as a collection of interactions, among a community of people in a given place (geographical location), or among a community who share an interest or who share a history - wikipedia
Communitarian philosophy is based upon the belief that a person's social identity and personality are largely molded by community relationships, with a smaller degree of development being placed on individualism.
Communitarians criticize the image Rawls presents of humans as atomistic individuals, and stress that individuals who are well-integrated into communities are better able to reason and act in responsible ways than isolated individuals, but add that if social pressure to conform rises to high levels, it will undermine the individual self.
Communitarians uphold the importance of the social realm, and communities in particular, though they differ in the extent to which their conceptions are attentive to liberty and individual rights.
Even with these general similarities, communitarians, like members of many other schools of thought, differ considerably from one another. There are several distinct (and at times wildly divergent) schools of communitarian thought - wikipedia
The following authors have communitarian tendencies in the philosophical sense, but have all taken pains to distance themselves from the political ideology known as communitarianism, which is discussed further below:
Generic multi-axis political spectrum chart. - wikimedia