Ison
Likely a patronymic surname meaning “son of Isan,” probably from a Welsh personal name.
The #5,213 most common surname in the United States (2010 Census) — about 1 in every 46,102 Americans shares it.
Etymology
The strongest historical explanation treats Ison as a patronymic: “the son of Isan.” The personal name Isan is usually taken as Welsh or Welsh-looking in origin, though the exact root of that forename is not fully secure. Some older writers also compared related forms such as Iveson and Ivison, but the Ison evidence most directly points to descent from a personal name rather than from a place-name or occupation.
History
Bardsley records the surname as a baptismal form and notes modern examples in Liverpool, which fits a Welsh connection and movement into English urban areas. Lower also groups Ison with surnames derived from personal names. The surname is not especially common, but it appears in English records by the 17th century and has continued at low frequency into modern times.
Origin
Regions
Variant spellings
Fun fact
Older surname dictionaries sometimes linked Ison with Welsh-influenced naming patterns because it turns up alongside clearly Welsh surnames like Floyd.
From the historical record
“tough as iron." ISON. Seelve. ISRAEL. A common Jewish surname, from the personal designation. ISTED. Probably of local English origin — Highstead, " the lofty situation." The family have, however, a tradition of a deri- A^ation "fi'om Eysted, a large maritime town in the province of Schonen, in the kingdom of…”
— Patronymica Britannica: a dictionary of the family names of the United Kingdom