Keiden, pronounced /ˈkiːdiən/, is an unisex given name of modern origin. It is derived from the combining forms 'Kai' and 'Eden', the latter of which means 'delight' or 'paradise'. The name Keiden first gained popularity in the late 20th century, with its usage peaking in the early 21st century. Its popularity can be attributed to its unique sound and flexible pronunciation, as it lends itself well to a variety of nicknames such as Kai, Eddie, or Kedi.
The name Keiden experienced a significant increase in popularity between 2005 and 2011, with a notable peak of 29 births in 2011. However, it has since shown a decrease, with the most recent years (2022 and 2023) seeing fewer than 25 births each. Overall, there were 411 babies named Keiden between 2004 and 2023.