As a global communion of Anabaptist-related churches, Mennonite World Conference engages in dialogue with other Christian world communions and organizations. Most recently, MWC has been involved in dialogue with:

Trilateral dialogue between Mennonites, Catholics and Lutherans

Baptism and Incorporation into the Body of Christ, the Church: final report of the Trilateral Dialogue on baptism (2020)

Die Taufe und die Eingliederung in den Leib Christi, die Kirche: Lutherisch/mennonitisch/römisch-katholische trilaterale Gespräche

• Dialogues on baptism close with learning and prayer (March 2017)
• Incorporation into the body of Christ (April 2016)
• Catholic, Lutheran, Mennonite, Trilateral Dialogue Commission on Baptism (February 2015)
• Mennonites, Catholics and Lutherans hold second round of dialogue on baptism (March 2014)
• Baptism the focus of trilateral dialogue by Mennonites, Catholics and Lutherans (January 2013)

On-going Dialogues

After a one-year hiatus for logistical reasons, plans for dialogue between Mennonite World Conference (MWC) and World Communion of Reformed Churches (WCRC) have resumed. The dialogue, which will likely commence in 2021, is envisioned to have three components: praxeological, theological, and historical.

Baptists

• See Baptists and Mennonites in Dialogue, the report on conversations between the Baptist World Alliance and the Mennonite World Conference: 1989-1992.

Believers' Baptism Churches

• See the full text of the report on the Consultation on Believers’ Baptism held in Kingston, Jamaica, January 2015

Catholics

• See  Called Together to be Peacemakers, the report of the International Dialogue between the Catholic Church and Mennonite World Conference, 1998 – 2003.
• See A Mennonite and Catholic Contribution to the World Council' Decade to Overcome Violence, the report from the Mennonite-Catholic conference 23-25 October 2007.
• See letter of congratulations on the appointment of Pope Francis, sent by Cesar Garcia on behalf of MWC to the Vatican. 
• See also trilateral dialogues below

Lutherans

• See Healing Memories: Reconciling in Christ, the final report of the Lutheran-Mennonite International Study Commission, 2010. The report laid the foundation for the July 2010 Lutheran World Federation reconciliation action dealing with the legacy of Lutheran persecution of Anabaptists.
• See January 2014 letter from MWC to Mennonite colleges, universities, seminaries, information centers, and local/regional historical societies.
• See also trilateral dialogues below

Seventh-day Adventists

• See summary and recommendations from two rounds of dialogue in 2011-2012.
  English: Living the Christian Life in Today’s World: Adventists and Mennonites in Conversation, 2011-2012
  German: Als Christ in der heutigen Welt leben: Adventisten und Mennoniten im Gespräch, 2011-2012
• See book which includes all papers presented in the two rounds of dialogue, the summary and recommendations, and responses to questions that Mennonites and Seventh-day Adventists frequently ask of each other.