Boy Names Starting With K

Boy names starting with K are a modern success story, having kicked off in the 1950s and remained among the most popular names for boys ever since.

The top K name for boys in the US today, and the only one in the Top 100, is the nouveau Kayden. Along with Kayden, boy names starting with K in the US Top 300 include Kai, Kingston, Kevin, King, Karter, Knox, and Kyrie.

Kyle, not Kevin, is now the most popular K name for boys in Ireland, while Kylian is the top choice in France and Kilian in Germany.

Historically the most popular members of the K krew actually started life with a C: from 50s favorite Kenneth (Coinneach) to 70s sweetheart Kevin (Caoimhín).

Swapping a K for a C first initial is a trend that continues to this day, with Kaiden, Kaleb, Karter, Kash, Kameron and more still among the most popular K-starting names for boys. But there are also many K boys' names that came about their kool initial organically, like Nameberry favorites Kai, Keir and Koa.

Here, our full roster of boy names beginning with K. The top names below rank among the current US Top 1000 Baby Names and are ordered by popularity. Unique names rank below the Top 1000 and are listed alphabetically.

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See Unique Boy Names Starting with K

Top Boy Names Starting with K

  • Kayden

    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.Read More 

  • Kai

    Kai has many origins, but in the US is most commonly referred to as being of Japanese and Hawaiian derivation, meaning “sea.” In Europe, Kai is largely considered to have Frisian origin as a... Read More 

  • Kingston

    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. ... Read More 

  • Kaiden

    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,... Read More 

  • Kevin

    Kevin was derived from the name Caoimhín, which originated from the Irish elements coém, meaning “handsome,” and gein, “birth.” The feminine name Caiomhe, anglicized as Keeva,... Read More 

  • King

    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... Read More 

  • Karter

    Lovers of the name Carter and the Kardashians method of baby naming have popularized this choice, one of many boys' names starting with K... Read More 

  • Kaleb

    Kaleb is one of several boys' names starting with k that started life as a classic C name, Caleb. Kevin Federline named his boy Kaleb... Read More 

  • Kyrie

    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... Read More 

  • Kenneth

    Kenneth may have lost much of its luster now, but Kenneth has had its moments of glory. The first king of Scotland was Kenneth, and Sir Kenneth, a Christian crusader, was the hero of the Sir... Read More