This is a list of the most common male names starting with the letter J, based on people currently estimated to be alive in the United States as of 2021.
| Name | People | Average Age |
|---|---|---|
| James | 3,090,650 | 52.0 |
| John | 2,899,020 | 52.4 |
| Joseph | 1,726,390 | 42.7 |
| Joshua | 1,185,420 | 28.2 |
| Jason | 981,785 | 37.4 |
| Jacob | 907,312 | 22.0 |
| Jeffrey | 850,206 | 48.8 |
| Jonathan | 810,120 | 30.5 |
| Justin | 752,766 | 29.8 |
| Jose | 509,544 | 31.0 |
| Jeremy | 420,804 | 34.3 |
| Jack | 405,543 | 34.9 |
| Jerry | 393,163 | 59.9 |
| Jordan | 376,552 | 22.0 |
| Jesse | 324,166 | 35.5 |
| Juan | 317,264 | 30.4 |
| Jackson | 257,966 | 12.6 |
| Joel | 233,360 | 37.2 |
| Jayden | 229,926 | 10.3 |
| Johnny | 225,696 | 51.3 |
| Joe | 211,509 | 58.1 |
| Julian | 211,166 | 17.6 |
| Jesus | 210,679 | 26.6 |
| Jeremiah | 200,996 | 19.6 |
| Jeffery | 200,084 | 49.3 |
| Jimmy | 198,134 | 54.5 |
| Jared | 195,534 | 29.0 |
| Jay | 142,369 | 48.9 |
| Jon | 136,171 | 50.1 |
| Jorge | 128,416 | 26.9 |
| Josiah | 123,826 | 11.3 |
| Jake | 112,772 | 21.7 |
| Jerome | 97,964 | 53.5 |
| Javier | 97,629 | 26.0 |
| Jaxon | 97,244 | 7.1 |
| Jeff | 95,027 | 55.9 |
| Johnathan | 92,489 | 26.1 |
| Jim | 83,464 | 62.7 |
| Jamie | 79,451 | 38.8 |
| Jace | 77,650 | 10.0 |
| Jaden | 77,050 | 14.0 |
| Jonah | 71,714 | 14.4 |
| Jaime | 65,069 | 35.0 |
| Jonathon | 62,212 | 31.0 |
| Jessie | 59,468 | 46.1 |
| Jaxson | 57,739 | 6.5 |
| Julio | 55,746 | 29.5 |
| Jimmie | 52,461 | 63.0 |
| Josue | 52,198 | 17.5 |
| Jackie | 48,234 | 58.2 |
| Jameson | 48,069 | 9.0 |
| Joey | 47,229 | 39.8 |
| Julius | 44,754 | 33.0 |
| Johnnie | 44,629 | 61.4 |
| Jude | 43,612 | 12.0 |
| Jermaine | 39,659 | 33.2 |
| Jasper | 38,205 | 17.2 |
| Jalen | 37,620 | 17.8 |
| Jaylen | 36,211 | 13.0 |
| Jayce | 36,062 | 8.0 |
| Jayson | 32,904 | 24.2 |
| Jamal | 31,393 | 27.8 |
| Jaiden | 30,749 | 11.6 |
| Jakob | 30,735 | 18.0 |
| Joaquin | 29,248 | 19.4 |
| Jody | 27,746 | 50.9 |
| Judah | 26,750 | 8.9 |
| Johnathon | 24,512 | 27.2 |
| Jarrod | 24,018 | 35.2 |
| Jonas | 22,926 | 21.3 |
| Jase | 21,885 | 8.6 |
| Jarrett | 21,471 | 28.2 |
| Jax | 20,417 | 6.3 |
| Jamison | 18,707 | 19.9 |
| Justice | 18,309 | 15.4 |
| Jett | 18,262 | 9.1 |
| Junior | 17,551 | 40.6 |
| Jefferson | 17,433 | 30.8 |
| Jerald | 17,327 | 55.7 |
| Javon | 16,618 | 20.7 |
| Jean | 16,110 | 66.7 |
| Jan | 15,978 | 60.0 |
| Jarvis | 15,269 | 33.1 |
| Jamar | 15,107 | 26.7 |
| Josh | 14,192 | 34.0 |
| Jordon | 13,039 | 24.8 |
| Jamari | 12,958 | 11.8 |
| Jeffry | 12,855 | 51.1 |
| Jarred | 12,791 | 29.2 |
| Jess | 12,740 | 47.5 |
| Jensen | 12,713 | 10.1 |
| Johan | 12,235 | 13.3 |
| Jayceon | 11,537 | 5.2 |
| Julien | 11,488 | 15.2 |
| Jarod | 11,378 | 28.8 |
| Joesph | 10,915 | 47.8 |
| Jaron | 10,719 | 23.7 |
| Jamel | 10,646 | 28.4 |
| Jacoby | 10,396 | 15.2 |
| Jairo | 10,288 | 17.9 |