This is a list of the most common male names starting with the letter K, based on people currently estimated to be alive in the United States as of 2021.
| Name | People | Average Age |
|---|---|---|
| Kevin | 1,064,740 | 41.3 |
| Kenneth | 830,297 | 54.2 |
| Kyle | 463,172 | 29.5 |
| Keith | 352,413 | 49.8 |
| Kaleb | 80,602 | 15.1 |
| Kurt | 72,390 | 50.2 |
| Karl | 68,717 | 51.3 |
| Kelly | 68,179 | 43.6 |
| Kaden | 64,305 | 12.3 |
| Kayden | 60,840 | 8.1 |
| Kristopher | 59,858 | 31.9 |
| Kirk | 56,969 | 51.0 |
| Kent | 52,957 | 54.0 |
| Kai | 51,132 | 10.4 |
| Kelvin | 46,245 | 38.1 |
| Kaiden | 44,606 | 8.1 |
| Kenny | 43,126 | 44.0 |
| Kerry | 40,958 | 50.6 |
| Kingston | 36,705 | 6.0 |
| Keegan | 36,116 | 15.3 |
| Kameron | 35,502 | 15.2 |
| Kyler | 34,374 | 13.6 |
| Kendall | 30,442 | 22.8 |
| Kendrick | 29,605 | 23.8 |
| King | 29,045 | 9.9 |
| Kim | 26,836 | 57.7 |
| Ken | 25,192 | 54.5 |
| Karter | 23,233 | 5.5 |
| Kody | 22,449 | 22.5 |
| Khalil | 20,967 | 14.6 |
| Keaton | 20,584 | 16.0 |
| Kristian | 19,403 | 24.5 |
| Kobe | 19,306 | 12.8 |
| Kade | 19,247 | 12.9 |
| Karson | 17,729 | 9.0 |
| Keenan | 16,868 | 25.5 |
| Kurtis | 16,720 | 36.2 |
| Knox | 16,303 | 5.9 |
| Kane | 16,114 | 13.2 |
| Kareem | 16,035 | 24.4 |
| Kellen | 15,801 | 17.7 |
| Kolton | 14,789 | 11.8 |
| Kieran | 14,404 | 16.5 |
| Kory | 13,548 | 32.8 |
| Killian | 12,643 | 8.2 |
| Kason | 12,557 | 8.5 |
| Kris | 12,494 | 50.9 |
| Kyrie | 12,490 | 6.6 |
| Kash | 12,126 | 6.0 |
| Kasey | 11,581 | 28.0 |
| Kolby | 10,836 | 17.8 |
| Korey | 10,824 | 28.6 |
| Kamden | 10,698 | 8.0 |
| Kirby | 10,543 | 43.7 |
| Kian | 10,378 | 9.9 |
| Kayson | 10,185 | 5.4 |
| Kellan | 9,645 | 10.4 |
| Kristofer | 9,278 | 31.1 |
| Kenton | 9,253 | 35.5 |
| Kasen | 9,100 | 7.3 |
| Kamari | 9,027 | 9.1 |
| Kole | 8,900 | 14.1 |
| Kylan | 8,456 | 11.1 |
| Korbin | 8,388 | 10.8 |
| Keon | 8,326 | 20.8 |
| Keagan | 8,242 | 13.4 |
| Keven | 8,077 | 34.3 |
| Kyson | 7,183 | 6.4 |
| Kale | 7,142 | 19.0 |
| Kenyon | 7,113 | 27.1 |
| Khalid | 7,091 | 19.0 |
| Kip | 7,023 | 46.3 |
| Kennith | 6,957 | 53.9 |
| Kamron | 6,800 | 15.6 |
| Keanu | 6,701 | 13.0 |
| Kyree | 6,699 | 10.7 |
| Kennedy | 6,521 | 12.2 |
| Kermit | 6,186 | 62.5 |
| Kalvin | 6,018 | 24.5 |
| Kelton | 6,011 | 22.2 |
| Keshawn | 5,754 | 18.3 |
| Koby | 5,642 | 18.8 |
| Karim | 5,534 | 19.9 |
| Keyon | 5,531 | 19.1 |
| Konnor | 5,379 | 12.3 |
| Konner | 5,326 | 13.1 |
| Kraig | 5,300 | 45.9 |
| Kolten | 5,268 | 11.6 |
| Kairo | 5,220 | 2.7 |
| Kingsley | 5,217 | 10.5 |
| Kevon | 5,142 | 20.9 |
| Kadin | 4,902 | 15.4 |
| Kaison | 4,806 | 4.9 |
| Kannon | 4,797 | 6.9 |
| Kaeden | 4,742 | 11.0 |
| Kelley | 4,667 | 45.1 |
| Kelsey | 4,659 | 25.9 |
| Kye | 4,657 | 12.5 |
| Kohen | 4,655 | 6.2 |
| Kamryn | 4,622 | 11.9 |