Select: ALL A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
| Name | Membership | USCF# | ICA-Exp |
| Kaplan, Avi | Scholastic | 15263943 | 2025-01-31 |
| Karklins, Andrew | Honorary | 10349842 | 2030-12-31 |
| Karthikeyan, Arnav | Scholastic | 15514355 | 2025-04-17 |
| Khanbutaev, Artemii | Scholastic | 30784129 | 2025-11-30 |
| Klugstedt, Vincent Christian | Scholastic | 30682932 | 2025-04-29 |
| Kumar, Advik | Scholastic | 30151377 | 2026-01-31 |
| Kumar, Eesha | Scholastic | 30642510 | 2025-11-30 |
| Kumar, Raj | Scholastic | 30108445 | 2025-11-09 |
Memberships expiring on or after: 2025-01-01