Bunker
Likely from French bon coeur, meaning “good heart,” though some sources also suggested an occupational link to banking or exchange.
The #4,679 most common surname in the United States (2010 Census) — about 1 in every 40,726 Americans shares it.
Etymology
The most common explanation in older surname books derives Bunker from French bon coeur, literally “good heart,” used as a nickname for an original bearer of a kindly or generous disposition. That reading is supported by several 19th- and early-20th-century references, though the spelling has clearly been reshaped over time. A minority view linked it with an older form resembling banker or money-changer, but the “good heart” derivation is the standard one in the cited sources.
History
Bunker appears in English records as a surname and was treated by some compilers as a nickname surname rather than a place-name. Later writers continued to compare it with other virtue-based surnames such as Goodhart and Goodheart. The surname is established in Britain and later appears in the United States, where it remains relatively uncommon.
Origin
Regions
Variant spellings
Fun fact
Older surname writers explicitly compared Bunker with Goodhart and Goodheart as another “good quality” name.
From the historical record
“BUJs^GAY. A town in Suffolk. BUNKER. Fr. &ok ccei/r, " good heart," from the moral quality of the original bearer. BUNKLE. A parish in Berwickshire. Also a Scottish term for a stranger. BUNN. Probably the Fr. hon, and equivalent to Good. BUNNY. Probably from Bunny, co. Notts. The B.'s of Hxhope were said to”
— Patronymica Britannica: a dictionary of the family names of the United Kingdom