Noble kind
Allysson is a modern spelling variation of Alison, which originated as a French diminutive of Alice. It ultimately derives from the Germanic name Adalheidis, meaning noble type or of noble character.
Less common today
Allysson isn't in the latest US Top 1000. It last peaked at #2,913 in 2008.
US births per 5-year period, 1990βpresent (SSA data).