Bunch
A surname that most likely began as a nickname from “bunch,” for a lump, cluster, or stocky shape.
The #1,629 most common surname in the United States (2010 Census) — about 1 in every 13,960 Americans shares it.
Etymology
This surname is generally treated as a nickname from Middle English bunch, meaning a lump, swelling, cluster, or bundle. The word itself came into English through Old French, where related forms could mean a bundle or bunch of grapes. In surname use, it may have described someone with a stocky build, a rounded feature, or perhaps a person connected with a clustered object or sign.
History
The name is recorded in English sources by the 19th century as an established surname, and the dictionaries you supplied treat it among other descriptive nicknames such as Hunchback and Lumpy. No single origin story is secure, but the nickname explanation is the standard one. It has remained a relatively uncommon surname, with notable modern bearers in Britain and the United States.
Origin
Regions
Variant spellings
Fun fact
Some old surname lists place Bunch alongside vivid descriptive nicknames like Lumpy, Hunchback, and Allbones.
From the historical record
“shire. TRASH. O. French, a bunch of grapes — perhaps an inn sign. TRAVELLER. A man who has visited foreign countries.”
— Patronymica Britannica: a dictionary of the family names of the United Kingdom