Quan
An Irish surname usually understood as a shortened Anglicized form of an old Gaelic name, though the exact original form is not fully certain.
The #5,397 most common surname in the United States (2010 Census) — about 1 in every 47,860 Americans shares it.
Etymology
Historical surname dictionaries connect Quan with an Irish Gaelic name written in older sources as O Cuain or a closely related form. The underlying personal name is commonly linked to cuan, meaning “harbor,” “haven,” or sometimes broadly “sea,” so the surname likely began as a descendant-of name built from a personal nickname or byname. Because the OCR and 19th-century sources are not perfectly clear, the precise Gaelic spelling should be treated cautiously.
History
The name appears in Irish surname lists as a recognized Anglicized form, and later Irish civil and census records show it alongside spellings such as Quann and Quaine. In North America it is rare but established, and in Boston it was already noted among resident surnames in the 19th century. The surname’s modern distribution likely reflects Irish emigration, especially from areas where the name was retained or simplified as Quan.
Origin
Regions
Variant spellings
Fun fact
A 19th-century Irish surname reference lists Quan alongside several related forms, showing that the name was already being standardized in English spelling by that time.
From the historical record
“Quoid. 91. QUAN. Qixann. Peg. 623. 1713 Perry. M'Polin. 410.”
— Varieties and Synonymes of Surnames and Christian Names in Ireland