| No. | Valid Name | Author | English Name |
| 1. | Hypoplectrus aberrans | Poey, 1868 | Yellowbelly hamlet |
| 2. | Hypoplectrus affinis | (Poey, 1861) | Bluelip hamlet |
| 3. | Hypoplectrus atlahua | Tavera & Acero, 2013 | Jarocho hamlet |
| 4. | Hypoplectrus castroaguirrei | Del Moral Flores, Tello-Musi & Martínez-Pérez, 2012 | |
| 5. | Hypoplectrus chlorurus | (Cuvier, 1828) | Yellowtail hamlet |
| 6. | Hypoplectrus ecosur | Victor, 2012 | Spotted hamlet |
| 7. | Hypoplectrus espinosai | Puebla, Aguilar-Perera, Robertson & Domínguez-Domínguez, 2025 | Campeche Bank hamlet |
| 8. | Hypoplectrus floridae | Victor, 2012 | Florida hamlet |
| 9. | Hypoplectrus gemma | Goode & Bean, 1882 | Blue hamlet |
| 10. | Hypoplectrus gummigutta | (Poey, 1851) | Golden hamlet |
| 11. | Hypoplectrus guttavarius | (Poey, 1852) | Shy hamlet |
| 12. | Hypoplectrus indigo | (Poey, 1851) | Indigo hamlet |
| 13. | Hypoplectrus liberte | Victor & Marks, 2018 | Striped hamlet |
| 14. | Hypoplectrus maculiferus | Poey, 1871 | |
| 15. | Hypoplectrus maya | Lobel, 2011 | Maya hamlet |
| 16. | Hypoplectrus nigricans | (Poey, 1852) | Black hamlet |
| 17. | Hypoplectrus providencianus | Acero P. & Garzón-Ferreira, 1994 | Masked Hamlet |
| 18. | Hypoplectrus puella | (Cuvier, 1828) | Barred hamlet |
| 19. | Hypoplectrus randallorum | Lobel, 2011 | Tan Hamlet |
| 20. | Hypoplectrus unicolor | (Walbaum, 1792) | Butter hamlet |