Allison is a feminine given name of American origin, derived from the Scottish surname 'Ailsa', which itself stems from the medieval personal name 'Aileis'. The name Aileis was adapted into English as Alison and later evolved to Allison in the United States during the late 19th century. It gained significant popularity in the mid-20th century, particularly in the United States, where it peaked in usage between 1970 and 1980.
"Allisson saw a significant rise in popularity from 2007 onwards, with a peak of 768 births in 2008. However, it has since declined, with only 41 births recorded in 2023."