Unique Boy Names that Start With K

Kayden

Modern invented name

This member of the aden/ayden extended family is a popular choice not only in the US but across the pond in England, Wales and Scotland as well. Angie Everhart has a son named Kayden Bobby. Although…

Knox

Scottish

"round hill"

Knox is an old Scottish surname that Brad Pitt (whose great-great-grandfather was named Hal Knox Hillhouse) and Angelina Jolie took out of the back cupboard, dusted off, and elevated to coolness--to…

Kingston

English

"king's town"

Chosen for their first son by musical couple Gwen Stefani and Gavin Rossdale, this Jamaican place and elegant British surname also boasts the more regal yet user-friendly short form, King. Kingston…

Kairo

Spelling variation of place-name Cairo, Arabic

"the conqueror"

Contemporary Kairo fits in with the modern trend of substituting a C for a K initial, and in this case, it works to get you more easily to the cool nickname Kai. In fact, parents in the US and the UK…

Kaiden

Spelling variation of Kaden, modern invented name

This version of Kaden is also a popular choice and one of the many boys' names starting with k that can also start with a C, as in Caiden, Cayden et al.. Kaiden Alenko is a character in the video…

Kyrie

Greek

"Lord"

Kyrie may be a name of God used widely in the ancient church refrain Kyrie Elieson, or Lord, have mercy, but it's rising in popularity for boys in the US on the strength of basketball star Kyrie…

Kayson

Modern invented name, or English "enclosed town" "calf town"

"calf town"

Kayson is one of several variations of the boys' name Cason , a favorite of the 2010s when it appeared in many different forms, from the Casen to Kaisen to Cayson. Likely inspired by the popular…

Koa

Hawaiian

"warrior; flowing tree native to Hawaii"

The international popularity of Noah has led to some parents searching for alternatives and the rhyming Koa is now attracting more attention than ever. With its cool K initial and summery,…

Kash

Spelling variation of Cash, word and occupational name

"money; box maker"

A modern spelling of an already modern sounding name, Kash is a spelling variant of the name Cash. Like Kairo, Karter, Karson, and Krew, that K initial gives it a very 21st century feel. Kash can be…

Kaden

Spelling variation of Kayden, modern invented name

"round or barrel"

A popular member of the -ayden family, Kaden ranks alongside Kaiden, Kayden, Kasen, Kade, Caiden, Cade, and Caden in the US Top 1000. A 90s invention that took off in the 2000s, Kaden is concise and…

Kade

Spelling variation of Cade, English

"round, barrel; battle"

Kade falls into the trend of using a letter K at the beginning of a traditionally C-starting name, perhaps to give it a sharper edge. Trending since the 90s, Kade is currently in the Top 400, while…

Kaizen

Japanese

"good change"

Kai is one of the hottest names out there in recent years, climbing quickly into the Top 100. This combined with a surge of Japanese names gaining popularity in the US, like Kenji, Raiden, and Kenzo,…

Kyaire

Modern Invented, American

"to shine; good"

Kyaire was among the fastest-rising boy names of 2025, and a newcomer to the US Top 1000 in 2023. Popular amongst African American parents, it is speculated that Kyaire was inspired by modern…

Kieran

Irish

"little black-haired one"

Long popular in Ireland and England, Kieran, the name of Ireland's first-born saint and twenty-five other saints, has been building its U.S. fan base thanks to its strong and attractive sound, and…

Kamari

Variation Qamar, Arabic

"moonlight"

A melodic name, popular among the African-American community, where it joins sound-alikes Amari, Jamari, and Damari. It ultimately derives from the Arabic Qamar, meaning "moon", and is also used by…

Kashton

American invented name

"town of the box maker; money town"

This newly invented name takes a cool short form—Kash/Cash—and adds the trendy -ton suffix, a la Ashton, Colton, and Weston. It made its first appearance on the US Top 1000 list in 2015 and has risen…

Kian

Irish; Persian

"ancient; king"

A friendly Irish and Persian name chosen by Geena Davis for one of her twin boys, whose father is Iranian. Irish and Iranian has to be one of the most diverse pair of roots of any name. Kian can be a…

Kylo

Variation of Kyle, Scottish

"narrow spit of land"

The original Kyle has sparked many variations, including Kylie, Kyler, and Kylo, after Kylo Ren, the villain played by Adam Driver in the seventh Star Wars movie, released in December 2015. .Kylo,…

Kyler

Dutch

"victory of the people"

Kyler was once a creative solution for 90s parents who enjoyed the sounds of Kyle and Tyler but didn't want to use anything so popular. Now a well-established name on the US charts, it is given to…

King

English

"monarch"

King is a name that sends a mixed message. While some might think of it as more fitting for a canine, others see it as a strong name with offbeat style and a full court of rich associations, from Dr.…