| Name | Other names | Notes | Image |
| Alberta Wild Horse[1] | | | |
| American Bashkir Curly[2]: 434 | - American Curly Horse
- North American Curly Horse
| | |
| American Belgian Draft[2]: 434 | | | |
| American Cream Draft[2]: 434 | | | |
| American Crème Horse[2]: 434 [3] | | | |
| American Drum Horse[2]: 434 | | | |
| American Indian Horse[2]: 434 | | | |
| American Miniature Horse[2]: 434 | | | |
| American Paint Horse[2]: 435 | Paint Horse | | |
| American Quarter Horse[2]: 435 | Quarter Horse[2]: 497 | | |
| American Saddlebred[2]: 435 | | | |
| American Shetland Pony[2]: 435 | | | |
| American Sorraia Mustang[2]: 435 | | of Iberian origin, in the Colonial Spanish horse group; no connection to the Sorraia has been demonstrated[2]: 435 | |
| American Spotted[2]: 435 | | | |
| American Spotted Paso[2]: 435 | | | |
| American Thoroughbred | Thoroughbred | derives directly from the British Thoroughbred; some lines and some coat colors would not be eligible for registration in the General Stud Book[2]: 436 | |
| American Walking Pony[2]: 436 | | | |
| American Warmblood[2]: 436 | | | |
| American White Horse[2]: 436 | | | |
| Appaloosa[2]: 438 | | | |
| Baca-Chica[3] | | | |
| Banker[2]: 442 [3] | | | |
| Blazer[2]: 445 | | Modern breed of riding horse, bred particularly for ranch work; developed by Neil Hinck of Star, Idaho, from a single foundation stallion named Little Blaze.[2]: 445 | |
| Camarillo White Horse[2]: 448 | | | |
| Canadian[2]: 449 [3] | | | |
| Canadian Pacer[2]: 449 | | | |
| Canadian Pinto[2]: 449 | | | |
| Canadian Rustic Pony[2]: 449 | | | |
| Canadian Sport Horse[2]: 449 | | | |
| Canadian Warmblood[2]: 449 [1] | | | |
| Carolina Marsh Tacky[2]: 449 | Marsh Tacky[3] | | |
| Cerbat Mustang[2]: 450, 457 | | | |
| Cherokee Horse[2]: 451 | | | |
| Chickasaw[2]: 451 [4] | | | |
| Chincoteague Pony[2]: 452 | Assateague Horse[2]: 452 | | |
| Choctaw Horse[2]: 453 [3] | | | |
| Colonial Spanish[2]: 455 [3] | | | |
| Colorado Ranger[2]: 457 | | | |
| Conestoga Horse[2]: 443 | | extinct | |
| Cumberland Island Horse[2]: 459 | | | |
| Florida Cracker Horse[2]: 466 | | | |
| Galiceño[3] | | | |
| Kanata Pony[2]: 478 | | | |
| Kentucky Mountain Saddle Horse[2]: 479 | | | |
| Kiger Mustang[2]: 480 | | | |
| Lac La Croix Indian Pony[2]: 481 [1] | - Lac La Croix Pony
- Lac La Croix Indigenous Pony
- Ojibwe Pony
| | |
| Missouri Fox Trotter[2]: 486 | | | |
| Morab[2]: 487 | | | |
| Morgan [2]: 487 | | | |
| Morocco Spotted[2]: 487 | | | |
| Mountain Pleasure Horse | | | |
| Moyle[2]: 488 | | Ranch and endurance horse, bred in Utah by Rex Moyle from Colonial Spanish and Cleveland Bay stock[2]: 487 [5]: 183 | |
| Mustang[2]: 488 | American Mustang[2]: 434 | | |
| Narragansett Pacer[2]: 488 | | extinct | |
| National Show Horse[2]: 488 | | | |
| Nemaiah Valley Horse[1] | | | |
| Newfoundland Pony[1][3] | | | |
| Nez Perce Horse[2]: 489 | | | |
| Nokota [2]: 490 | | | |
| North American Sportpony | American Sport Pony[2]: 435 | | |
| Pony of the Americas[2]: 497 | Appaloosa Pony[2]: 438 | | |
| Pryor Mountain Mustang | Pryor Mountain[2]: 457 | | |
| Puerto Rican Paso Fino[3] | | | |
| Quarab[2]: 497 | | | |
| Quarter Pony[2]: 435 | | | |
| Racking Horse[2]: 497 | | | |
| Rocky Mountain Horse[2]: 498 | | | |
| Sable Island Pony[2]: 499 | | | |
| Santa Cruz[3] | | | |
| Spanish Jennet Horse[2]: 477 | | | |
| Spanish Barb[4] | | The Spanish Barb Breeders Association is a registry for Colonial Spanish horses; eligible horses stand 140–150 cm and may be of any color[2]: 457 [6] | |
| Spanish Mustang[4] | | | |
| Spanish Norman[2]: 504 | | | |
| Spotted Saddle Horse | National Spotted Saddle Horse[2]: 488 | | |
| Standardbred[2]: 436 | - American Standardbred
- American Trotter
| | |
| Sulphur[3] | | | |
| Tennessee Walking Horse[2]: 507 | | | |
| Tiger Horse[2]: 508 | | A gaited, leopard-spotted riding horse, bred from Appaloosa, Paso Fino and Colonial Spanish stock; height 147–152 cm | |
| Virginia Highlander[2]: 472 | | | |
| Walkaloosa | | derives from Tennessee Walking Horse and Appaloosa, displays leopard spots and ambling gait[2]: 512 | |
| Welara[2]: 512 | | | |
| Wilbur-Cruce[3] | | | |