The Jesuit Refugee Service (JRS) is an international Catholic organisation with a mission to accompany, serve and advocate on behalf of refugees and other forcibly displaced persons. JRS undertakes services at national and regional levels with the support of an international office in Rome. Founded in November 1980 as a work of the Society of Jesus, JRS was officially registered on 19 March 2000 at the Vatican State as a foundation.

JRS programmes are found in 51 countries, providing assistance to: refugees in camps and cities, individuals displaced within their own countries, asylum seekers in cities, and to those held in detention centres. The main areas of work are in the field of education, emergency assistance, healthcare, livelihood activities and social services. At the end of 2016, more than 733,400 individuals were direct beneficiaries of JRS projects.

JRS is also very much concerned with advocacy and human rights work. This involves ensuring that refugees are afforded their full rights while in exile and during repatriation as guaranteed by the 1951 Geneva Convention relating to the Status of Refugees and working to strengthen the protection afforded to internally displaced persons (IDPs). It extends to lobbying for and promoting international human rights legislation, either through participation in international campaigns and coalitions or through membership of international fora, such as the UN Economic and Social Committee (ECOSOC). 

JRS also contributes to refugee research at the University of Oxford. At Oxford, the 'Pedro Arrupe Tutor' overseas research undertaken in the name of JRS as well as facilitating the training of JRS personnel. The main tasks of the tutorship include conducting research, teaching and consultancy regarding refugees and forced migration for church agencies, NGOs and governments.