Custer
A surname most likely from a nickname or occupational form, often linked to the medieval name Costard or to church-service terms like koster/coster.
The #3,324 most common surname in the United States (2010 Census) — about 1 in every 28,614 Americans shares it.
Etymology
The historical evidence points to more than one possible route. One line of explanation connects Custer with Middle English Costard, a common nickname that may have referred to a round head; from that same source come forms such as Coster and Custard. Another line, especially in Dutch and Low German contexts, treats Custer as related to koster/coster, an occupational word for a church sexton or sacristan, so the surname may have begun as a job-name or a nickname derived from it.
History
The name is recorded in European surname traditions in several spelling forms, especially in Dutch and Belgian material, where Custer appears alongside De Coster, De Custer, and Custers. In English-speaking countries it is comparatively uncommon, but the surname became established in the United States and is best known today through a few notable bearers, including the Custer family of frontier history. Because the name has multiple plausible sources, its exact origin can vary by family line.
Origin
Regions
Variant spellings
Fun fact
Older surname scholars grouped Custer with a wider family of names ending in -ster that often reflect occupations or nicknames, rather than assuming it was a modern spelling variant of Custer only.
From the historical record
“servant of John. Costard is a very common Middle English nickname, perhaps for a round-headed man ; hence also Coster, Custer, Custard. A few kitchen-garden names have already been men- tioned, but the group is not large. Bean is usually Scottish, Gael, ban, white, whence Bain, but this will not account for the…”
— Surnames