Our Lady of Heliopolis Co-Cathedral

{{Infobox religious building

| name = Our Lady of Heliopolis Co-Cathedral

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| image = Baselik church.jpg

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| coordinates = {{coord|30.0936|N|31.3252|E|source:wikidata|display=inline,title}}

| religious_affiliation = Roman Catholic

| rite = Roman

| location = Heliopolis, Cairo

| country = Egypt

| patron = Mary, mother of Jesus

| architect = Alexandre Marcel

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| architecture_style = Byzantine Revival

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| funded_by = Édouard Empain

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| groundbreaking = 1911

| year_completed = 1913

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| facade_direction = Southwest

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| website = {{url|www.labasilique.org}}

}}

Our Lady of Heliopolis Co-Cathedral,[http://www.gcatholic.org/churches/africa/5097.htm Cathedral of Our Lady of Helipolis] also known as the Latin Cathedral of Our Lady of Heliopolis, or the Basilica of the Holy Virgin,{{cite book |last1=Meinardus |first1=Otto F. A. |title=Christian Egypt, Ancient and Modern |date=1977 |publisher=American University in Cairo Press |page=328 |isbn=9789772014965 |url=https://books.google.com/books?id=wLnYAAAAMAAJ&q=%22Basilica+of+the+Holy+Virgin%22}} is a Roman Catholic church building, located on Al-Ahram Square in the Heliopolis neighbourhood of Cairo, Egypt.{{Cite book|url=https://books.google.com/books?id=DsHYAAAAMAAJ |title=Christians in Egypt: Orthodox, Catholic and Protestant Communities Past and Present |last=Meinardus |first=Otto F. A. |year=2006 |publisher=American University in Cairo Press |isbn=9789774249730 |language=en}}

Alexandre Marcel designed the cathedral in a Byzantine Revival style, based on the Hagia Sophia. It was completed in 1913.{{cite book |last1=Turrel |first1=Denise |title=Villes rattachées, villes reconfigurées |date=2003 |publisher=François-Rabelais |location=Tours |isbn=9782869063303 |page=258 |url=https://books.google.com/books?id=Id0ZCwAAQBAJ&pg=PA258 |language=fr}} A crypt within the cathedral houses the remains of its financer, Édouard Empain, and his family.{{cite book |editor1-last=Thompson |editor1-first=Hugh |editor2-last=Folklard |editor2-first=Claire |title=Egypt |date=2001 |publisher=Dorling Kindersley |isbn=9781409386490 |page=137 |edition=2013 |chapter-url=https://books.google.com/books?id=VQnyAAAAQBAJ&pg=PA137 |chapter=Giza and Heliopolis}}

{{cn-span|A co-cathedral since 2008,|date=October 2020}} it follows the Roman Rite under the jurisdiction of the Apostolic Vicariate of Alexandria of Egypt (Vicariatus Apostolicus Alexandrinus). In 2014 members of various Christian denominations gathered at the site to pray for the country's future after the events in the Arab spring.{{Cite web|url=http://www.fides.org/en/news/35198-AFRICA_EGYPT_Bishop_Zaki_Christian_churches_pray_together_for_the_future_of_the_Country#.VscjfhD08kU|title=Agenzia Fides, News|website=www.fides.org|access-date=2016-04-08}}

File:The back of the Our Lady of Heliopolis Co-Cathedral In January 2025.jpg