The most popular baby names in the United States according to the U.S. Social Security Administration for the year 2021. These names were based on the number of newborns registered with the Social Security Administration in the United States in 2021. It's important to note that these rankings can change from year to year, so the rankings for 2022 or subsequent years may differ.
Please note that the official rankings may vary depending on the source and methodology. Here are the top baby names for boys and girls in 2021 in Alphabetical order:
| Name | Rank |
|---|---|
| Kinsley | 57 |
| Kennedy | 70 |
| Kaylee | 139 |
| Kehlani | 151 |
| Katherine | 157 |
| Kylie | 159 |
| Khloe | 176 |
| Kimberly | 220 |
| Kamila | 227 |
| Kaia | 230 |
| Kayla | 255 |
| Kailani | 278 |
| Kaylani | 281 |
| Kali | 284 |
| Kendall | 305 |
| Kiara | 331 |
| Kalani | 339 |
| Kira | 384 |
| Kate | 414 |
| Kayleigh | 418 |
| Kamryn | 462 |
| Kenzie | 464 |
| Keira | 471 |
| Kyla | 498 |
| Kora | 501 |
| Kinley | 505 |
| Kennedi | 525 |
| Katie | 527 |
| Katalina | 553 |
| Kaliyah | 558 |
| Kensley | 563 |
| Kaitlyn | 582 |
| Kathryn | 591 |
| Karsyn | 611 |
| Kelsey | 625 |
| Kendra | 650 |
| Kylee | 651 |
| Kyra | 665 |
| Karina | 676 |
| Kori | 677 |
| Kataleya | 680 |
| Kimber | 684 |
| Kassidy | 689 |
| Keilani | 695 |
| Karla | 699 |
| Khaleesi | 700 |
| Kenna | 709 |
| Kinslee | 733 |
| Katelyn | 759 |
| Kai | 767 |
| Kamiyah | 768 |
| Kara | 769 |
| Kiana | 781 |
| Kallie | 792 |
| Kamari | 821 |
| Kaydence | 843 |
| Kelly | 850 |
| Kairi | 856 |
| Khalani | 861 |
| Karter | 864 |
| Kaisley | 870 |
| Kimora | 910 |
| Kynlee | 921 |
| Kaiya | 945 |
| Kailey | 958 |
| Kahlani | 966 |
| Kiera | 969 |
| Kyleigh | 970 |
| Kamilah | 982 |
| Keyla | 983 |
| Kathleen | 985 |
| Kathleen | 985 |