| Foundation | Image | Communities & Provenance | Formal Name or Dedication
& Alternative Names!width = 10%|OnLine References & Location | | Carrickmacross Monastery | early monastic site, founded before 845 | Cell-rois;
Feara-rois|{{coord|53.971758|-6.719124|format=dms|name=Carrickmacross Monastery (?)}} (?) |
| Clochensis Friary ~≈? | Augustinian Friars
possibly Clones former house of Augustinian Canons (see immediately below) | Clockensis;
Clochensis in Connacht;
Clones| |
| Clones Abbey | early monastic site, Gaelic monks, founded before 549/50 by St Tigernach
Augustinian Canons Regular
founded after 1140?
Augustinian Canons Regular — Arroasian?
reformed c.1144?;
dissolved after 1586?; granted to Sir Henry Duke
possibly later Augustinian Friars (if Clokensis (see immediately above)) | SS Peter and Paul
St Tighernach
____________________
'St Tierney' ;
Wee Abbey;
Cluain-eois;
Cluan-auis;
Clunes;
Cluniscense;
Clokensis?|{{coord|54.183|-7.2337|format=dms|type:landmark_scale:5000_region:IE_source:wikimapia |name=Clones Abbey}} |
| Clontibret Monastery | early monastic site, Gaelic nuns, patronised by St Colman;
termon land 1591 | Cluain-tiprat|{{coord|54.204043|-6.838960|format=dms|name=Clontibret Monastery (approx.)}} (approx) |
| Connabury Monastery | early monastic site, Gaelic nuns, founded before 740 | Gort-chonaigh|{{coord|54.117187|-6.732602|format=dms|name=Connabury Monastery (approx.)}} (approx) |
| Donagh Monastery | early monastic site, Gaelic monks;
erenagh 1542 | Domnachmaighe-da-chlaoine;
Dumthomuach|{{coord|54.301531|-6.962867|format=dms|name=Donagh Monastery (approx.)}} (approx) |
| Donaghmoyne Monastery | early monastic site, founded by St Patrick;
plundered by Norsemen 832 | Domnach-maigen|{{coord|54.002215|-6.692455|format=dms|name=Donaghmoyne Monastery}} |
| Drumsnat Monastery | early monastic site, patronised by St Molua | Druim-snechta|{{coord|54.224531|-7.068651|format=dms|name=Drumsnat Monastery}} |
| Errigal Trough Monastery | early monastic site, Gaelic monks | Airecal-muadain|{{coord|54.385910|-7.002587|format=dms|name=Errigal Trough Monastery (approx.)}} (approx) |
| Inniskeen Monastery | early monastic site, founded before 587;
burned 789;
plundered 948;
possibly not surviving after 10th century;
burned 1166 | Inis-cain-dega;
Inis-kin;
Innishkeen|{{coord|54.0010381|-6.5768408|format=dms|name=Inniskeen Monastery}} |
| Killeevan Abbey ~ø | supposed monastic site — order and period unknown; remains of "Abbey" church — possibly legendary| |
| Kilmore Monastery ~ | early monastic site
burned 749 | St Aedan
____________________
Cell-mor of Aedan| |
| Loughbawn Abbey | purported "Abbey" site|{{coord|54.043202|-6.906677|format=dms|name=Loughbawn "Abbey"}} |
| Monaghan Friary = | Franciscan Friars Minor, Conventual
founded 1462 (during the reign of Feidhlimidh Mac Mathgamna (Phelim MacMahon), King of Oriel) on the site of the early monastery (see immediately below);
Observant Franciscan Friars
reformed 1567;
dissolved 1588-9, destroyed by the English 1589; granted to Edward Withe;
fortified mansion built from the friary masonry by Lord Edward Blarney | Muinechan;
Muineachan;
Mounechan;
Munichane|rowspan=2|[1]
{{coord|54.247425|-6.970042|format=dms|name=Monaghan Friary}} |
| Monaghan Monastery | early monastic site[2]
Franciscan friary built on site 1462 (see immediately above) |
| Muckno Monastery | early monastic site, Gaelic monks;
plundered by the Ulidians 1110;
claimed by Augustinian Friars 17th to 19th century | Mucnamh;
Muck Naimh;
Mucshnamh;
Muckna;
Muckne|{{coord|54.116807|-6.698655|format=dms|name=Muckno Monastery}} |
| Tehellan Monastery | early monastic site, Gaelic monks
founded 5th century by St Patrick | Tech-talan;
Tech-talain;
Tyhallan;
Tyholland|{{coord|54.267060|-6.892133|format=dms|name=Tehellan Monastery (approx.?)}} (approx?) |
| Tedavnet Monastery | early monastic site, Gaelic nuns
founded 6th century by St Damhnat | Tech-damnata;
Tydavnet|{{coord|54.296212|-7.016616|format=dms|name=Tedavnet Monastery}} |
| Tullycorbet Monastery | early monastic site | Tullach-carpait| |