The Louisiana Interchurch Conference (LIC) is the one statewide ecumenical cooperative of the churches in Louisiana. It is a sign and symbol of unity in Christ by its commitment to working together through study, worship, witness, and Christian love. In 1992, the Rev. C. Dana (Dan) Krutz, an Episcopal priest, became the executive director for the LIC which is headquartered in Baton Rouge. The diocese's ecumenical work is carried out by the Ecumenical Commission composed of lay and clergy members appointed by the bishop.

The Rev. Susan Gaumer of St. Andrew's Church, New Orleans, is the diocesan ecumenical officer. She coordinates the diocese's ecumenical work and participates in the national church's network of ecumenical officers.