Mohr
A surname with multiple roots, most often from a German word for a Moor or dark-complexioned person, but sometimes shaped by similar-looking local or Germanic names.
The #2,106 most common surname in the United States (2010 Census) — about 1 in every 17,971 Americans shares it.
Etymology
In German, Mohr is most commonly linked to the old word for a Moor, ultimately from Latin and Old French forms meaning a person from North Africa or, more loosely in older usage, someone dark-complexioned. That makes it a nickname-style surname in many cases. Some historical surname dictionaries also note that similar spellings can overlap with unrelated place-name forms or with shortened Germanic names beginning Mor-/Mühr-, so not every bearer necessarily shares the same origin.
History
The name appears in German-speaking areas and was recorded in older surname studies as a straightforward German surname form. Because the spelling is short and common, it has also been compared with other names such as Moor, Mör-, and related variants in different regions. In English-language sources, it was occasionally discussed alongside Scottish Gaelic names only as a phonetic or spelling comparison, not as a primary origin.
Origin
Regions
Variant spellings
Fun fact
Older surname dictionaries explicitly gloss Mohr as "the Moor" in German, showing how directly many surnames once described appearance or background.
From the historical record
“Campbell are called " Clan Duine." and their chiefs have always been styled Mac- Calean-Mohr (not Mac-Callum More as Sir Walter Scott has it,) i. e. " the son of Colin the Great," in memory of their distinguish- ed ancestor, Sir Colin Campbell of Lochow, who in the XIII. cent, laid the foundation of the greatness…”
— Patronymica Britannica: a dictionary of the family names of the United Kingdom