Patriarch Sergius may refer to:
Eastern Orthodox patriarchs
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Sergius of Bulgaria
Sergius ( bg, Сергий) was the third Bulgarian Patriarch of the Bulgarian Orthodox Church
The Bulgarian Orthodox Church ( bg, Българска православна църква, translit=Balgarska pravoslavna tsarkva), legally the Pa ...
, Patriarch of Bulgaria c. 931 – c. 940
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Patriarch Sergius I of Constantinople, Patriarch 610–638
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Patriarch Sergius II of Constantinople
Sergius II ( el, Σέργιος Β′; ? – July 1019) was the Ecumenical Patriarch of Constantinople from July 1001 to 1019.
According to the history of John Skylitzes, he was a relative of the celebrated 9th-century patriarch Photius. In 1001 ...
, Patriarch 1001–1019
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Patriarch Sergius I of Moscow, Patriarch 1943–1944
Other patriarchs
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Sergius of Tella, Syriac Orthodox Patriarch of Antioch 544–546
Fictional patriarchs
*Patriarch Sergius XVII, a
character in ''Xenosaga''
{{disambiguation, tndis