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 |
| Mahesh, Praakruthi | Scholastic | 30859999 | 2025-11-11 |
| Maksimovic, IM Dejan | Honorary | 12747283 | 2030-12-31 |
| Manetti, Lawrence | Regular | 15719081 | 2025-11-30 |
| Manickam, Praganyan | Scholastic | 16069137 | 2025-12-06 |
| Manimaran, Shivani | Scholastic | 16614018 | 2026-01-01 |
| Marshall, Kenneth | Regular | 10357861 | 2025-05-18 |
| Marsten, Joanna | Scholastic | 16138168 | 2025-08-31 |
| Martinez, Paxton | Scholastic | 31689805 | 2025-01-31 |
| McAlister, Kelvin | Regular | 12519171 | 2025-05-18 |
| Mehrotra, Ekansh | Scholastic | 15991103 | 2025-04-03 |
| Menon, Rohan | Scholastic | 17197867 | 2026-01-31 |
| Mikolyzk, Thomas A | Regular | 2025-03-16 | |
| Minor Vellapandi, Aadhisudhan | Scholastic | 30310532 | 2026-01-17 |
| Minor Vellapandi, Shivakumaran | Scholastic | 31792935 | 2025-03-31 |
| Misra, Pragyan | Scholastic | 15893762 | 2025-04-30 |
| Mitkov, Nikola | Honorary | 12710197 | 2030-12-31 |
| Moham, Adhvik | Scholastic | 30790764 | 2026-01-31 |
| Mohan, Anvitha | Scholastic | 32004120 | 2026-01-31 |
| Mok, Donovan | Scholastic | 2025-02-28 | |
| Mok, Moravia | Scholastic | 2025-02-28 | |
| Morris, Brian | Regular | 14216012 | 2025-02-28 |
| Mosely, Angelo | Regular | 32010164 | 2025-09-01 |
| Murali, Rishi | Scholastic | 17352697 | 2025-05-18 |
Memberships expiring on or after: 2025-01-01