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 |
| Oberai, Aditya | Scholastic | 15550296 | 2024-04-30 |
| Oberai, Anisha | Scholastic | 15794814 | 2024-04-30 |
| Oberai, Maninder | Regular | 2024-04-30 | |
| Oberai, Vikram | Scholastic | 15404550 | 2024-04-30 |
| Odom, Bren | Scholastic | 30210733 | 2024-06-30 |
| Ordonez, Ciro Diaz | Honorary | 16387431 | 2030-12-31 |
| Osborne, Keoni | Scholastic | 15827492 | 2024-11-30 |
| Osborne, Sara Jane | Regular | 16771655 | 2024-11-30 |
Memberships expiring on or after: 2024-04-01