The name Kaiden is a relatively modern name that is believed to have originated in the late 20th century. It is thought to be a variant spelling of the name Caden, which is derived from the Welsh name Cadwyn, meaning "battle" or "conflict." The name Kaiden is believed to have been created as a more unique and modern spelling of this traditional Welsh name.

While the name Kaiden does not have a long historical lineage, it has gained popularity in recent decades, particularly in English-speaking countries such as the United States, Canada, and the United Kingdom. One of the earliest recorded uses of the name Kaiden can be found in a 1985 book titled "The Boy Who Loved Anne Frank" by Ellen Feldman, in which a character named Kaiden appears.

In terms of notable individuals with the name Kaiden, there are a few examples from the modern era. Kaiden Guhle is a Canadian ice hockey player who was drafted by the Montreal Canadiens in the 2020 NHL Entry Draft. Kaiden Smith is an American actor who has appeared in films such as "Teeth" and "The Boy."

Another notable Kaiden is Kaiden Malique, an American singer and songwriter who rose to prominence on the social media platform TikTok. He has released several singles and has amassed a significant online following.

While the name Kaiden does not have a long historical lineage, it has gained popularity in recent decades and has been adopted by various individuals around the world. Its unique spelling and modern sound have contributed to its appeal and its usage as a first name.