Hassan
A surname with multiple possible roots, including Irish forms and an Anglicized patronymic from Harry/Henry.
The #1,652 most common surname in the United States (2010 Census) — about 1 in every 14,162 Americans shares it.
Etymology
The historical sources point to more than one possible origin. In Irish usage, Hassan is often treated as an Anglicized form of an Irish surname written in Gaelic sources, while some Scottish commentators also explain it as a form meaning “son of Hal,” with Hal being a short form of Harry or Henry. Because the records are not fully consistent, the surname should be treated as having mixed or uncertain roots rather than a single secure derivation.
History
The name appears in Irish and Scottish surname lists in the 19th-century literature, and it was already established in Anglicized spellings such as Hassan, Hasson, and Hassin. In Scotland, some writers linked it to a patronymic family-name pattern; in Irish contexts, it was recorded alongside other surnames of Gaelic origin. In modern English-speaking countries it is also common as a given name and surname of independent Arabic origin, though that is separate from the older British Isles surname traditions reflected in these sources.
Origin
Regions
Variant spellings
Fun fact
The surname turns up in 19th-century Scottish clan and Irish surname indexes, but the old authorities did not agree on one single explanation for it.
From the historical record
“837 HASSAN. Haslewood. Heazlewood. Tumbleton. 626. IMI'Daeker. 401. Hasson. 45”
— Varieties and Synonymes of Surnames and Christian Names in Ireland