Coat of arms
Louis Raphaël I Sako
elected 31 January 2013
|First holder||Mar Aggai|
|Denomination||Chaldean Catholic Church|
|Rite||East Syriac Rite|
|Established||300 as Diocese of Seleucia-Ctesifonte|
1553 as Patriarch
|Cathedral||Cathedral of Our Lady of Sorrows|
|Bishops emeritus||Emmanuel III Delly|
The Chaldean Catholic Patriarchate of Babylon (Latin: Patriarchatus Babylonensis Chaldaeorum) is the Patriarchate of the Chaldean Catholic Church, based in Cathedral of Mary Mother of Sorrows, Baghdad, Iraq. The current patriarch is Louis Raphaël I Sako. He is assisted by the archbishop of Erbil Shlemon Warduni and the Auxiliary Bishop of Baghdad Basel Yaldo.  Its cathedral is the Church of Mary Mother of Sorrows in Baghdad, Iraq.
The Chaldean Catholic Church of Babylon is an Eastern Catholic church representing symbolic origins to ancient Chaldæa, and is in full communion with the Holy See and the Catholic Church. The Chaldean Catholic Church was at first known as the "Church of the East" after being created due to a dispute known as the Schism of 1552, which split the Church of the East into two religious factions; Catholicism and The Church of the East. However, the Chaldean Church broke off from the Catholic Church, forming the modern day Assyrian Church of the East, or "Holy Apostolic Catholic Assyrian Church of the East", so named as it was once aligned with the Catholic Church as the "Chaldean Church". Therefore, a new Catholic church was formed known as the Chaldean Catholic Church in 1672, with patriarchate established in Diyarbakir, Ottoman Empire.
- Chaldean Patriarchal See of Babylon
- "Bishops appointed for Chaldean Church in Sydney, Toronto, Baghdad," by Catholic News, dated January 15, 2015 https://web.archive.org/web/20150217084418/http://www.catholicnews.com/data/stories/cns/1500181.htm
- Declaration of the Chaldean Patriarchy on the Role of Chaldeans in the New Iraq, dated September 15, 2003. http://www.chaldeansonline.org/chaldeanews/bishops.html.
- "Sako Elected New Chaldean Patriarch," dated February 5, 2013 http://English.ankawa.com/?p=8211
- Opening Remarks by Chaldean Church’s Bishop Ibrahim at the General Chaldean National Conference in Southfield, Michigan on May 15, 2013. http://www.kaldaya.net/2013/Articles/06/03_BishopMarIbahimE.html
- Article entitled "Chaldeans in Metro Detroit" dated August 2011 by ABCNews, article found at "Archived copy". Archived from the original on 2013-09-19. Retrieved 2013-09-19.CS1 maint: archived copy as title (link)
- Iraqi Constitution, Article 125 http://www.iraqinationality.gov.iq/attach/iraqi_constitution.pdf Archived 2016-11-28 at the Wayback Machine
- See BBC NEWS (March 13, 2008). "Who are the Chaldean Christians?". BBC NEWS, dated March 13, 2008. http://news.bbc.co.uk/2/hi/middle_east/7271828.stm
- Iraqi Christians’ long history, BBC News, November 1, 2010 https://www.bbc.co.uk/news/world-middle-east-11669994
- Wilmshurst, David (2000). The Ecclesiastical Organisation of the Church of the East, 1318–1913. Louvain: Peeters Publishers. ISBN 9789042908765.
- Wilmshurst, David (2011). The martyred Church: A History of the Church of the East. London: East & West Publishing Limited. ISBN 9781907318047.