Mar Shimun may refer to any of the following Patriarchs of the Church of the East:
- Shemon Bar Sabbae, (c. 329âÂÂc. 341), Church of the East
- Shimun II (1365âÂÂ1392), Church of the East
- Shimun III (1403âÂÂ1407), Church of the East
- Shimun IV (1437âÂÂ1497), Church of the East
- Shimun V (1497âÂÂ1501), Church of the East
- Shimun VI (1503âÂÂ1538), Church of the East
- Shemon VII Ishoyahb (1538âÂÂ1551), Church of the East
- Shimun VIII Yohannan Sulaqa (1553âÂÂ1555), first Patriarch of the Chaldean Catholic Church
- Shimun IX Dinkha (1580âÂÂ1600), Patriarch of the Chaldean Catholic Church
- Shimun X Eliyah (1600âÂÂ1638)
- Shimun XI Eshuyow (1638âÂÂ1656)
- Shimun XII Yoalaha (1656âÂÂ1662)
- Shimun XIII Dinkha (1662) 1681âÂÂ1700, Patriarch who broke the Communion with Rome. Successors became leaders of the Assyrian Church of the East
- Shimun XIV Shlemon (1700âÂÂ1740), Assyrian Church of the East
- Shimun XV Maqdassi Mikhail (1740âÂÂ1780), Assyrian Church of the East
- Shimun XVI Yohannan (1780âÂÂ1820), Assyrian Church of the East
- Shimun XVII Abraham (1820âÂÂ1860), Assyrian Church of the East
- Shimun XVIII Rubil (1860âÂÂ1903), Assyrian Church of the East
- Shimun XIX Benyamin (1903âÂÂ1918), Assyrian Church of the East (assassinated)
- Shimun XX Paulos (1918âÂÂ1920), Assyrian Church of the East
- Shimun XXI Eshai (1920âÂÂ1975) (assassinated), Assyrian Church of the East
See also