| Catholic Encyclopedia: St. Columba: Also known as Columcille. Long article on the Irish-born monk, founder and abbot of Iona. He died in 597. |
| Catholic Online: St. Columba: Brief biography. |
| Columba of Iona: Short biography, by Karen Rae Keck. |
| Columba, Abbot of Iona and Missionary: Brief biography. With prayer in traditional and contemporary language. |
| Columbia Encyclopedia: Columba, Saint: Brief biographical entry. |
| For All the Saints: Columba: Also called Columbus, Combs, or Columkill. Long hagiographical essay. |
| Life of St. Columba: A translation from the Latin. Written by Adamnan. 242K. |
| Manx Notebook: St. Columba: Brief illustrated biography. |
| Patron Saints Index: Columba: Also known as Colmcille. Illustrated profile. |
| Saint Columba, Abbot, Confessor: From the book "Lives of Saints," published by John J. Crawley. |
| St. Columba, or Columcille, 521-597: Short biography. |
| St. Columba, or Columkille: Hagiography. From Alban Butler's Lives of the Saints. |
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