Show ContentsO'Hassan History, Family Crest & Coats of Arms

Etymology of O'Hassan

What does the name O'Hassan mean?

The Gaelic name used by the O'Hassan family in ancient Ireland was Ó hOsain, which is possibly derived from the word "os," which means deer. 1

Early Origins of the O'Hassan family

The surname O'Hassan was first found in County Londonderry (Irish: Doire), a Northern Irish county also known as Derry, in the province of Ulster, where the surname is still the found today.

Early History of the O'Hassan family

This web page shows only a small excerpt of our O'Hassan research. Another 149 words (11 lines of text) covering the years 1550, 1598 and 1663 are included under the topic Early O'Hassan History in all our PDF Extended History products and printed products wherever possible.

O'Hassan Spelling Variations

Scribes and church officials, lacking today's standardized spelling rules, recorded names by how they were pronounced. This imprecise guide often led to the misleading result of one person's name being recorded under several different spellings. Numerous spelling variations of the surname O'Hassan are preserved in documents of the family history. The various spellings of the name that were found include Hassan, Hassen, Hasson, Hason, O'Hassan, Hassane, O'Hessan and many more.

Early Notables of the O'Hassan family

More information is included under the topic Early O'Hassan Notables in all our PDF Extended History products and printed products wherever possible.

Migration of the O'Hassan family

A massive wave of Irish immigrants hit North America during the 19th century. Although many early Irish immigrants made a carefully planned decision to leave left Ireland for the promise of free land, by the 1840s immigrants were fleeing a famine stricken land in desperation. The condition of Ireland during the Great Potato Famine of the late 1840s can be attributed to a rapidly expanding population and English imperial policies. Those Irish families that arrived in North America were essential to its rapid social, industrial, and economic development. Passenger and immigration lists have revealed a number of early Irish immigrants bearing the name O'Hassan: Alexander and John Hassan who arrived in New York in 1816; Christian Hassan, who arrived in New Jersey in 1755; Bryan Hassen, who arrived in New York in 1816.



  1. MacLysaght, Edward, The Surnames of Ireland. Ireland: Irish Academic Press, sixth edition, 1985. Print. (ISBN 0-7165-2366-3)


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