Caelyn is an uncommon, feminine given name of Welsh origin. It is derived from the ancient Welsh name Caelydd, which means 'elegant fighter'. The name gained popularity in recent years due to its unique sound and spelling, often favored by parents seeking distinctive names for their daughters.
The name Caelyn experienced significant growth in popularity from the late 1980s to the mid-2010s, with a notable spike beginning around the year 2005 and peaking in 2012 with 193 births. However, it has since declined, with only 37 births recorded each in 2022 and 2023. Overall, there have been 2375 babies named Caelyn from 1987 to 2023.