Groupe des Dombes, the Dombes Group, is a gathering of 20 Roman-Catholic and 20 Protestant theologians that has met regularly since 1937 in a small monastery, the Abbey of Notre-Dame des Dombes near Lyon, France.
It was found by Paul Couturier (1881-1953), a French priest who worked in ecumenical circles.
It is not just a mere theological gathering but a "spiritual" approach to ecumenism.
Aside from the discussion of doctrinal matters, it also includes common prayer and the "call to conversion" addressed to the churches.
For many years, besides meeting at the Abbey of the Dombes, the group sometimes met at Taizé.