English place name meaning 'cress spring' or 'watercress well.'
Caswell is an English surname-turned-given-name with origins in Old English topography. It combines *carse* or *cæsse* — a word for watercress, the peppery aquatic plant that grew abundantly in English streams — with *wella*, meaning "spring" or "stream." A Caswell was literally "the watercress spring," a place where pure, cold water ran clear enough to support the plant.
Such descriptive place names were common across the English countryside, and families who lived near or owned land at such a spring eventually took the name as their own. As a family name, Caswell appears in English records from the thirteenth century onward and made the Atlantic crossing with colonial settlers. In American history, Richard Caswell holds particular distinction as the first governor of the state of North Carolina following independence, serving from 1776 to 1780 and again later — a founding figure whose name was honored in county names, townships, and eventually in the naming of children across the South and Mid-Atlantic states.
Used as a given name, Caswell carries the quiet authority of the English surname tradition — names like Shelby, Merritt, or Grayson occupy the same cultural register. It has never been common enough to feel generic, yet its Anglo-American roots make it immediately legible. The nickname Cas gives it a casual warmth that balances the name's more formal bearing. For families drawn to American colonial history or simply to surname names with genuine etymological roots, Caswell offers character without pretension.