Neff
A surname with several possible origins, including a German short form and a French name meaning “naive” or “candid.”
The #1,577 most common surname in the United States (2010 Census) — about 1 in every 13,563 Americans shares it.
Etymology
The surname Neff is not straightforward, and historical sources give more than one explanation. In Germanic contexts it may be a shortened form of a personal name or a variant related to forms like Neef/Neefe; some 19th-century writers also connected it with a word for a niece or granddaughter, though that is less certain. In French, one source glosses it as from naif, meaning “artless” or “candid,” but that may reflect a separate surname tradition rather than the only source of the name.
History
The name appears in older surname lists in German, Dutch, and French forms, suggesting independent or overlapping family lines rather than a single origin. It is also found as a short surname in English-language records, likely carried by immigrant families from continental Europe. Because the early etymologies differ, modern bearers of Neff cannot be assigned one universal origin without family-specific evidence.
Origin
Regions
Variant spellings
Fun fact
Several 19th-century surname dictionaries treated Neff as a related form to Neef, Neve, and Neeve, showing how fluid spelling and pronunciation could be in older records.
From the historical record
“times a contraction of Nigel. NEFF. French, Naif, artless, candid. : Neft a water-mill; the nave of a church. NEFIS. Welsh, Nwyfus, sprightly. Nefils, French, a son born, descendant from. NEIL and NEL. In the Cor. Br. signifies power, might, that is, the powerful or mighty. Neul or Nidi, in the Gaelic, sig- ' nines…”
— An Etymological Dictionary of Family and Christian Names