Kaydin is a modern and unique given name of English origin. It is derived from the Scottish surname Kay, which was originally an occupational name for a reeve or bailiff. The name has gained popularity in recent years due to its distinctive sound and spelling. Kaydin is typically used as a boy's name but can also be given to girls.
The name Kaydin peaked in popularity between 2006 and 2008 with 77 births each year, but has since declined significantly, with only 23 births recorded in both 2022 and 2023.