Research examining the intersection of psychology and theology related to Multiculturalism, Social Justice, and Peace (MSJP) are needed. While some work has been done, this article highlights the value of further interdisciplinary engagement with these concepts. This article provides useful definitions for MSJP from both psychological and theological perspectives, identifies challenges to integration work, and summarizes the articles included in this special issue. Broad themes related to representation, ethnic/racial specific perspectives, development and formation, othering, and models and frameworks were used to organize the summary of articles.