Allysun is of American origin, derived from the combination of popular names Alice and Lynn. It was initially coined by author Sherrilyn Kenyon for her character Allysun Brady in her Dark-Hunter series. The name Allysun has gained recognition due to its unique sound and spelling, offering a distinct alternative to traditional names like Allison or Alyson.
The name Allysun has seen fluctuating popularity over the years, with a notable spike in usage during 1998 when it was given to eight newborns. Overall, since 1981, this name has been chosen for a total of 29 babies.