Anglican Centre in Rome
An Anglican library and centre of study for all Christians

Bossey Ecumenical Institute
A renowned centre for study in Switzerland, housing the WCC's archives and library

Cambridge Theological Federation
Orthodox, Anglican, Catholic, Methodist, URC - Ecumenical study, training for lay and ordained ministry

Centre for Catholic Studies
At the University of Durham's Department of Theology and Religious Studies. Home to the Receptive Ecumenism and Ecumenical Learning project and the action learning and practice research programme in the North East's churches

Centre for Eastern Christianity
, at Heythrop College, University of London

Centre for Ecumenical Research
Based at the Faculty of Theology, Catholic University of Leuven in Belgium

Centre Unité Chrétienne
The institute established by Pierre Michalon to continue the work of Paul Couturier, in developing the Week of Prayer, in fostering ecumenical study and contacts and in publishing a termly revue, Unité Chrétienne.

Centro Pro Unione - The Society of the Atonement in Rome
Franciscan friars and sisters consecrated to Christian unity. Website of their ecumenical library, study and conference centre in the Piazza Navona

Ecumenical Institute, Heidelberg, Germany
based in the Protestant Faculty of Theology and specialising in the bearing of Christianity and Christian Unity on society at large - and vice versa

Institute for Orthodox Christian Studies
based at Wesley House, Cambridge, a member of the Cambridge Theological Foundation

Institute of Ecumenical Studies, Prague
Based at the Czech Protestant Theological Faculty of the Charles University, linked with Heythrop and the International Ecumenical Fellowship, founded in 1994

Institute of Ecumenical Studies, Lviv
Based at the Catholic University of the Ukraine, a collaboration of Ukrainian Orthodox, Ukrainian Greek Catholics, Roman Catholics and Protestants, founded in 2004

Institute of Ecumenical Studies San Bernadino, Venice
A centre which forms part of the Antonianum, the Pontifical Athenaeum for the Franciscan Friars Minor in Rome

Irish School of Ecumenics
The prestigious institute for the study of Christian Unity affiliated with Trinity College, Dublin

The Johann Adam Moehler Institute for Ecumenism
based in Paderborn, Germany

Sarum College
Salisbury's place of study and a 'force for unity' for all Christians'

Societas Oecumenica
Europe's international association of academic study centres and organisations

Tantur
The Ecumenical Institute for Theological Studies near Jerusalem. Pray for the peace of Jerusalem