A spelling variant of Allison, originally a medieval French diminutive of Alice, meaning 'noble kind.'
Alysson is a variant spelling of Alison or Alyson, a name with Norman French origins that arrived in England with the Conquest of 1066 as a diminutive of Alice — itself derived from the Old High German Adalheidis, a compound of adal (noble) and heid (kind, sort), giving the whole lineage the meaning 'of noble kind.' The name flourished in medieval England and appears memorably in Chaucer's Canterbury Tales, where Alisoun is the name of both the Wife of Bath and the young wife in 'The Miller's Tale' — one a forceful, worldly woman who dominates men through wit and will, the other a vivacious, flirtatious village beauty.
These two Alisons between them encode a range of feminine archetypes that the name has carried ever since: spirited, intelligent, and impossible to ignore. The spelling Alysson adds a double-s flourish that gives the name a slightly more elaborate, decorative quality — distinguishing it visually while preserving the familiar sound. Alison surged in popularity through the mid-twentieth century across Britain, Ireland, and North America, carried in part by cultural touchstones like Elvis Costello's 1977 song 'Alison' and the character of Alison Argent in the television series Teen Wolf.
The various spellings — Alison, Alyson, Allison, Alysson — reflect how deeply embedded the name became across different communities, each spelling carrying slight nuances of personality and family style. Alysson in particular reads as slightly more whimsical and less conventional than the standard form, appealing to parents who want the warmth of a familiar name with just enough individuality to set it apart.