| Nbr | Name | Size | Owner | Owner# | Lessee | Lessee# |
| 1804 | U LUCKY DEVIL | 16.1.50 | M/M Sonny Purvis | | | |
| 6296 | UFO | 16.3 | Elaina Shea Amy | 7642 | | |
| 5881 | Ultima | 16.1 | Catherine Horrigan | 9013 | | |
| 6953 | Ultimate Z | 16.2 | Saddle Ridge LLC | | EHM Equestrian | 9756 |
| 3835 | ULTIMATELY INDIGO | 16.1 | Martha C. Houston | | | |
| 4872 | ULTIMATUM | 17 | Laura McNair | 7186 | | |
| 8989 | Ultra | 16.1 | Chelsea Kulp | 17155 | | |
| 6480 | Umberto | 16.2 | Emma Covington | 9065 | | |
| 4222 | UNANIMOUS | 16.2 | Connie Blythe | 4072 | | |
| 5861 | Uncle Luc | 17.1 | Meredith Mateo | 7889 | | |
| 4440 | UNCLE SAM | 15.3 | Sarah Biehl | | | |
| 2770 | UNCONDITIONAL LOVE | 12 | Kelli Tarleton | | | |
| 3258 | UNDENIABLE | 16.2 | Susie Carlson | 6558 | | |
| 3544 | UNDER MY SPELL | 16.2 | Lauren Galleher | 6309 | | |
| 4254 | UNDER THE MISLETOE | | | | | |
| 2292 | UNDERCOVER BLUES | 13.1 | Amanda Teague | | | |
| 6006 | Underestimated | 15.3 | Brie Tiffany | 6916 | | |
| 3935 | UNDERGROUND EXPRESS | 16 | Linda Johnson | | | |
| 2547 | UNDERSTATEMENT | 15.3 | Lindsey Bledsoe | | | |
| 5029 | Understatement | 17.1 | Katie Hall | | Hayden Rizer | 7351 |
| 5169 | Unexpected | 16.2 1/4 | Rachel Bethea | 6899 | | |
| 4496 | UNEXPECTEDLY | 165cm | Daniel Riccardi | 6870 | | |
| 2785 | UNFORGETABLE | 16.1 | Susan & Ken Cameron | | | |
| 2234 | UNFORGETABLE PRESENCE | 16.1 | Deborah Lea Jaeger | | | |
| 5506 | Unforgettable | 16.1 | Fran Castle | 6552 | | |
| 4651 | UNICORN'S CALISTO | 16.1 | Laura Beth Outlaw | 6437 | | |
| 6229 | Unimpeachable | 16.3 | Victoria Waugh | 6901 | | |
| 2086 | UNION GROVE | 16 | Keith Hastings | 6414 | | |
| 1483 | UNION HILL | 16.1 | Keith Hastings | 6414 | | |
| 6248 | Uno | 16.3 | Grace Anne Owens | 9082 | | |
| 3044 | UNTOLD STORY | 16.2 | Rachel Judd | | | |
| 5453 | Unwritten | 16.3 | Leigh Nelms Reiley | 7429 | | |
| 3330 | UNZIPPED | 16.2 | Rosie Midyette | 5116 | | |
| 6674 | Up 2 Neverland | 13.1 1/2 | Ava Loverso | 9591 | | |
| 2634 | UP AND RUNNING | 15.3 | Elizabeth Ann Kelly | | | |
| 8963 | Up And Up | 16.2 | Gail Glifort | | | |
| 4403 | UP TO SOMETHING | 15.3 | Janet Liu | | | |
| 6423 | Up Up and a Grey | 16.1 | Danielle Spencer | 9745 | | |
| 5494 | Up-N-Atem | 16.3 | Melissa Keener | 7744 | | |
| 5078 | Upside Down Brutus | 14.0 | Cecelia Erwin | 7391 | | |
| 2195 | UPTOWN | 15.2.50 | Lauren E. Kirby | | | |
| 3276 | UPTOWN GIRL | 16.1 | Triton Stables | 1183 | Mary Wrenn | 7389 |
| 6593 | Uptown Girl | 16.3 | Anna Rhodes | 9659 | | |
| 6832 | Urian | 16.2 3/4 | Logan Landfried | 16120 | | |
| 1907 | USER FRIENDLY | 14.1 | Strawberry Acres Too | | | |
| 3506 | USER FRIENDLY | 15.3 | Katie McDaniel | | | |
| Nbr | Name | Size | Owner | Owner# | Lessee | Lessee# |
| 1804 | U LUCKY DEVIL | 16.1.50 | M/M Sonny Purvis | | | |
| 6296 | UFO | 16.3 | Elaina Shea Amy | 7642 | | |
| 5881 | Ultima | 16.1 | Catherine Horrigan | 9013 | | |
| 6953 | Ultimate Z | 16.2 | Saddle Ridge LLC | | EHM Equestrian | 9756 |
| 3835 | ULTIMATELY INDIGO | 16.1 | Martha C. Houston | | | |
| 4872 | ULTIMATUM | 17 | Laura McNair | 7186 | | |
| 8989 | Ultra | 16.1 | Chelsea Kulp | 17155 | | |
| 6480 | Umberto | 16.2 | Emma Covington | 9065 | | |
| 4222 | UNANIMOUS | 16.2 | Connie Blythe | 4072 | | |
| 5861 | Uncle Luc | 17.1 | Meredith Mateo | 7889 | | |
| 4440 | UNCLE SAM | 15.3 | Sarah Biehl | | | |
| 2770 | UNCONDITIONAL LOVE | 12 | Kelli Tarleton | | | |
| 3258 | UNDENIABLE | 16.2 | Susie Carlson | 6558 | | |
| 3544 | UNDER MY SPELL | 16.2 | Lauren Galleher | 6309 | | |
| 4254 | UNDER THE MISLETOE | | | | | |
| 2292 | UNDERCOVER BLUES | 13.1 | Amanda Teague | | | |
| 6006 | Underestimated | 15.3 | Brie Tiffany | 6916 | | |
| 3935 | UNDERGROUND EXPRESS | 16 | Linda Johnson | | | |
| 2547 | UNDERSTATEMENT | 15.3 | Lindsey Bledsoe | | | |
| 5029 | Understatement | 17.1 | Katie Hall | | Hayden Rizer | 7351 |
| 5169 | Unexpected | 16.2 1/4 | Rachel Bethea | 6899 | | |
| 4496 | UNEXPECTEDLY | 165cm | Daniel Riccardi | 6870 | | |
| 2785 | UNFORGETABLE | 16.1 | Susan & Ken Cameron | | | |
| 2234 | UNFORGETABLE PRESENCE | 16.1 | Deborah Lea Jaeger | | | |
| 5506 | Unforgettable | 16.1 | Fran Castle | 6552 | | |
| 4651 | UNICORN'S CALISTO | 16.1 | Laura Beth Outlaw | 6437 | | |
| 6229 | Unimpeachable | 16.3 | Victoria Waugh | 6901 | | |
| 2086 | UNION GROVE | 16 | Keith Hastings | 6414 | | |
| 1483 | UNION HILL | 16.1 | Keith Hastings | 6414 | | |
| 6248 | Uno | 16.3 | Grace Anne Owens | 9082 | | |
| 3044 | UNTOLD STORY | 16.2 | Rachel Judd | | | |
| 5453 | Unwritten | 16.3 | Leigh Nelms Reiley | 7429 | | |
| 3330 | UNZIPPED | 16.2 | Rosie Midyette | 5116 | | |
| 6674 | Up 2 Neverland | 13.1 1/2 | Ava Loverso | 9591 | | |
| 2634 | UP AND RUNNING | 15.3 | Elizabeth Ann Kelly | | | |
| 8963 | Up And Up | 16.2 | Gail Glifort | | | |
| 4403 | UP TO SOMETHING | 15.3 | Janet Liu | | | |
| 6423 | Up Up and a Grey | 16.1 | Danielle Spencer | 9745 | | |
| 5494 | Up-N-Atem | 16.3 | Melissa Keener | 7744 | | |
| 5078 | Upside Down Brutus | 14.0 | Cecelia Erwin | 7391 | | |
| 2195 | UPTOWN | 15.2.50 | Lauren E. Kirby | | | |
| 3276 | UPTOWN GIRL | 16.1 | Triton Stables | 1183 | Mary Wrenn | 7389 |
| 6593 | Uptown Girl | 16.3 | Anna Rhodes | 9659 | | |
| 6832 | Urian | 16.2 3/4 | Logan Landfried | 16120 | | |
| 1907 | USER FRIENDLY | 14.1 | Strawberry Acres Too | | | |
| 3506 | USER FRIENDLY | 15.3 | Katie McDaniel | | | |
