Before Irish names were translated into English, O'loughlin had a Gaelic form of O Lochlainn, which is derived from a Norse personal name.
from very ancient times.
This web page shows only a small excerpt of our O'loughlin research.Another 136 words (10 lines of text) covering the years 1281, 1300, 1789, 1819, 1828, and 1842 are included under the topic Early O'loughlin History in all our PDF Extended History products and printed products wherever possible.
Lacking standardized spellings, scribes and church officials recorded people's name according to how they sounded. This practice often led to the misleading result of one person's name being recorded under several different spellings. Numerous spelling variations
of the surname O'loughlin are preserved in the archival documents of the period. The various spellings of the name that were found include Loughlin, O'Loughlin, Loughnane and others.