Bannon
An Irish surname that is usually explained as meaning “white” or “fair,” though the details are not fully certain.
The #6,845 most common surname in the United States (2010 Census) — about 1 in every 62,740 Americans shares it.
Etymology
Bannon is generally treated as an Irish surname. The older sources most often connect it with a Gaelic element meaning “white” or “fair,” though the exact original form is not always clear in the 19th-century scholarship. In some traditions it is grouped with other Irish names built from descriptive nicknames, suggesting a person who was pale- or fair-haired.
History
The name is found in Ireland and appears in historical surname studies alongside other Irish forms such as Bannan and Banin, which suggests a related name-family rather than a single fixed spelling. It later spread through emigration, especially to English-speaking countries, and is now established in Ireland, Britain, the United States, and elsewhere. The cited sources do not give a single agreed derivation, so the etymology should be read as probable rather than certain.
Origin
Regions
Variant spellings
Fun fact
19th-century Irish surname writers often grouped Bannon with other “ban-” names because the element ban in Irish commonly means “white” or “fair.”
From the historical record
“0 t)AnAin, Banane, Banan, Bannan, Bannon, Banin, Banim, etc. ; White. 6 "bAOisBAllAin, Boylan, Boy- land.”
— Sloinnte Gaedheal is Gall: Irish names and surnames