- Estimated Population: less than 200
2. Sorraia
- Estimated Population: less than 200
3. Caspian
- Estimated Population: less than 2,000
4. Akhal-Teke
- Estimated Population: approximately 3,400
5. Peruvian Paso
- Estimated Population: less than 20,000
6. Fjord
- Estimated Population: approximately 8,000
7. Bashkir Curly
- Estimated Population: approximately 750
8. Konik
- Estimated Population: approximately 3,400
9. Kiger Mustang
- Estimated Population: less than 500 in the wild
10. Mangalarga Marchador
- Estimated Population: less than 49,000
Note: Population estimates may vary and can change over time. These figures are rough estimates based on available information.