Nelson
A classic patronymic surname meaning “son of Neil” or, in some cases, “son of Nell.”
The #43 most common surname in the United States (2010 Census) — about 1 in every 727 Americans shares it.
Etymology
Nelson is chiefly a patronymic surname built on the personal name Neil or Nigel, with the ending -son meaning “son of.” In English records, it can also sometimes reflect Nel, a short form of Eleanor, so the surname may have more than one starting point. The deeper root behind Neil is usually traced to older Gaelic and ultimately to an older name meaning something like “champion” or “cloud,” though historical surname dictionaries often handle the lineages cautiously.
History
The name appears in medieval English records, and early sources already show it in forms like Neelson and Nelson. It became well established in England and Scotland, then spread widely through later migration to North America and other English-speaking regions. Because it can arise from more than one given name, different Nelson families are not necessarily related.
Origin
Regions
Variant spellings
Fun fact
Some 19th-century surname scholars warned that Nelson is not always “son of Neil” — in some cases it may actually come from the old pet form Nel, linked to Eleanor.
From the historical record
“NELMS J aiid pi., -s suffix. NELSON I Nel's or Neil's Son : v. Neil. 2 Nell's Son : v. NelP. Thomas Nellson. — Yorhs Poll-Tax, A.D. 1379. Thomas Nelson. — Lane. Fines, A.D. 1458.”
— Surnames of the United Kingdom: a concise etymological dictionary (2 vols in 1)