Kayln is an uncommon and unique given name of American origin, often pronounced as "KAY-lin" or "KAIL-en". It is a variant spelling of the more common name Kaylin, which can also be found spelled as Cailyn or Kailynn among others. The name's popularity has been steadily increasing in recent years, particularly since the late 20th century. As of now, it remains relatively rare compared to other names, making it a distinctive choice for parents looking for something different.
"The name Kayln saw a significant increase in popularity from 1983 to its peak in 1995, with over 29 births recorded that year. However, it has since declined, with fewer than 15 births per year after 2000, and only single-digit numbers from 2013 onwards."