Maddux
An English and Welsh surname usually explained as a variant of Maddox, meaning “son of Madoc” or, in some older accounts, “son of Hadoc.”
The #7,490 most common surname in the United States (2010 Census) — about 1 in every 69,412 Americans shares it.
Etymology
Maddux is generally treated as a spelling variant of Maddox, a surname formed from an early Welsh personal name. The older dictionary excerpts give two competing explanations: one connects it with Madoc, and another with Hadoc, both interpreted as the basis for a patronymic meaning “son of” that name. In practice, the Madoc explanation is the more common modern one, while the Hadoc form reflects older and less certain scholarship.
History
The surname is part of a broader Welsh surname pattern in which an old personal name was turned into a hereditary family name, often with shifting spellings in English records. Forms such as Maddox, Maddocks, Maddux, and related variants became fixed over time, especially in English-speaking areas outside Wales. Today Maddux is best known as a relatively uncommon American spelling of this surname family.
Origin
Regions
Variant spellings
Fun fact
Bardsley’s notes show just how fluid surname spelling could be, listing Maddux alongside several close variants as interchangeable forms of the same family name.
From the historical record
“Maddiok, Uaddloka, Mad. dock, Maddooks, Maddox, Maddux. — BapL 'the son of Hadoc.' An early Welsh personal nam& For history, v. Yonge, ii. 99. With Haddox for Maddocks, cf. Rin, Dixon, Simcox, &c.”
— A Dictionary of English and Welsh Surnames, with special American instances