Duke, Dukes Surname

Dukes
English: patronymic from Duke 1 or 2.

Duke
English and Irish: from Middle English duk(e) ‘duke’ (from Old French duc, from Latin dux, genitive ducis ‘leader’), applied as an occupational name for someone who worked in the household of a duke, or as a nickname for someone who gave himself airs and graces.
English and Irish: possibly also from the personal name Duke, a short form of Marmaduke, a personal name said to be from Irish mael Maedoc ‘devotee (mael, maol ‘bald’, ‘tonsured one’) of Maedoc’, a personal name (M’Aodhóg) meaning ‘my little Aodh’, borne by various early Irish saints, in particular a 6th-century abbot of Clonmore and a 7th-century bishop of Ferns.
Scottish: compare the old Danish personal name Duk (Old Norse Dukr).
In some cases, possibly an Americanized form of French Leduc or Spanish Duque.
Possibly an Americanized spelling of Polish Duk, a nickname from dukac ‘to stammer or falter’.

Leduc
French: nickname for someone who gave himself airs and graces, from the Old French title of rank duc ‘duke’ (from Latin dux ‘leader’, genitive ducis), or else an occupational name for a servant employed in a ducal household.

Dictionary of American Family Names, Oxford University Press, ISBN 0-19-508137-4

Duque
Spanish and Portuguese: from duque ‘duke’ (from Latin dux, genitive ducis ‘leader’), an occupational name for someone who worked in the household of a duke, or as a nickname for someone who gave himself airs and graces.
French (also Duqué): nickname from duquet, a diminutive of French duc ‘duke’ (see Duchon).

Dictionary of American Family Names, Oxford University Press, ISBN 0-19-508137-4

Duchon
from a diminutive of Duc ‘duke’, hence a nickname for someone who gave himself airs and graces or an occupational nickname for someone who worked in the household of a duke.
Americanized (NH) spelling of French Duchamp.

Dictionary of American Family Names, Oxford University Press, ISBN 0-19-508137-4

Duchamp
French: topographic name meaning ‘from the field’.

Dictionary of American Family Names, Oxford University Press, ISBN 0-19-508137-4