| Name | Sex | Colour | Registration | Foaling Date | Reg Status | Competition Status |
|---|---|---|---|---|---|---|
| ORANA DOWNS TESS | Mare | CHESTNUT | 240026 | 01/11/2011 | Stud Book | Not Eligible |
| ORANA DOWNS TED | Gelding | CHESTNUT | C1-241820 | 28/10/2013 | First Cross | Not Eligible |
| ORANA DOWNS SONRAY - HSH | Gelding | CHESTNUT | 251697 | 30/10/2010 | Stud Book | Eligible |
| ORANA DOWNS SCARLET | Mare | CHESTNUT | C1-251065 | 19/01/2006 | First Cross | Not Eligible |
| ORANA DOWNS PENNY | Mare | BROWN | 66111 | 18/12/1978 | Stud Book | Deceased |
| ORANA DOWNS NED | Gelding | CHESTNUT | C1-241819 | 19/12/2012 | First Cross | Eligible |
| ORANA DOWNS MISS MOLLY - HSH | Mare | BAY/BROWN | 181662 | 13/09/2003 | Stud Book | Eligible |
| ORANA DOWNS LADY JANE | Mare | BROWN | 158236 | 04/11/2000 | Stud Book | Eligible |
| ORANA DOWNS JENNIFER | Mare | BAY | SM-148182 | 20/08/1998 | Special Merit - Stud Book | Eligible |
| ORANA DOWNS HEIDI | Mare | BROWN | 142162 | 26/10/1998 | Stud Book | Eligible |
| ORANA DOWNS GILLETTE | Mare | CHESTNUT | C1-187882 | 24/11/2000 | First Cross | Eligible |
| ORANA DOWNS CATHY | Mare | BLACK | C1-244358 | 05/11/2007 | First Cross | Deceased |
| ORANA DOWNS CASSADY - HSH | Gelding | BLACK | 60035 | 03/09/1977 | Stud Book | Not Eligible |
| ORANA DOWNS CADDIE - HSH | Mare | BAY | 240503 | 07/03/2008 | Stud Book | Eligible |
| ORANA DIETA - HSH | Mare | CHESTNUT | 53734 | 22/10/1973 | Stud Book | Not Eligible |
| ORANA | Mare | BROWN | 35794 | Stud Book | Not Eligible | |
| ORAMAR | Mare | CHESTNUT | 34082 | 22/10/1972 | Stud Book | Not Eligible |
| ORALEA TWILIGHT | Mare | DUN | 21393 | Stud Book | Deceased | |
| ORA VISTA | Mare | CHESTNUT | F30470 | 12/10/1981 | Foal Recorded | Deceased |
| ORA TARA | Mare | BAY | 23333 | 01/09/1973 | Stud Book | Not Eligible |
| OPULENT STAR | Mare | BLACK | B2-193137 | 21/08/1996 | Breeding Purposes Only - Second Cross | Not Eligible |
| OPTIONAL EXTRA | Gelding | BROWN | 76042 | 17/10/1978 | Stud Book | Deceased |
| OPTIMUM TELARA | Mare | CHESTNUT | 232697 | 14/09/2008 | Stud Book | Not Eligible |
| OPTIMUM SPITFIRE - HSH | Gelding | BROWN | 257812 | 06/11/2012 | Stud Book | Eligible |
| OPTIMUM SPIDER | Gelding | BLACK | 232696 | 11/01/2012 | Stud Book | Not Eligible |
| OPTIMUM SMEGGLE | Gelding | GREY | C1-192590 | 17/11/2006 | First Cross | Not Eligible |
| OPTIMUM ROCKET | Gelding | BUCKSKIN | C1-272726 | 14/10/2022 | First Cross | Not Eligible |
| OPTIMUM RIANNA - HSH | Mare | BAY | 252149 | 17/11/2015 | Stud Book | Eligible |
| OPTIMUM RESOLUTION - HSH | Mare | GREY | 251626 | 01/01/2013 | Stud Book | Eligible |
| OPTIMUM PEACHES - HSH | Mare | CHESTNUT | 257815 | 26/11/2019 | Stud Book | Eligible |
| OPTIMUM NUDGEE | Gelding | BUCKSKIN/GREY | 252148 | 31/08/2017 | Stud Book | Eligible |
| OPTIMUM MAGDALENE - HSH | Mare | CHESTNUT | 252147 | 13/11/2014 | Stud Book | Eligible |
| OPTIMUM JUGAR | Gelding | BAY | C2-192685 | 05/09/2007 | Second Cross | Not Eligible |
| OPTIMUM GOLLUM | Gelding | GREY | C1-231217 | 30/10/2008 | First Cross | Eligible |
| OPTIMUM DROVER | Gelding | CHESTNUT | 237523 | 12/11/2011 | Stud Book | Not Eligible |
| OPTIMUM CONYA - HSH | Gelding | BROWN | 232695 | 04/11/2007 | Stud Book | Eligible |
| OPTIMUM CONVINCE - HSH | Gelding | BAY | 257813 | 13/11/2017 | Stud Book | Eligible |
| OPTIMUM CONVENE - HSH | Mare | BROWN | 257811 | 27/09/2016 | Stud Book | Eligible |
| OPTIMUM COMPANY - HSH | Gelding | BLACK | 241738 | 10/11/2014 | Stud Book | Not Eligible |
| OPTIMUM CHASE | Gelding | BAY | 251625 | 11/11/2018 | Stud Book | Not Eligible |
| OPTIMUM CHANEL - HSH | Mare | BROWN | 251623 | 10/10/2002 | Stud Book | Eligible |
| OPTIMUM CHANCE | Gelding | BAY/BROWN | 251624 | 27/10/2017 | Stud Book | Eligible |
| OPTIMUM CELINE - HSH | Mare | GREY | 232694 | 25/10/2010 | Stud Book | Eligible |
| OPTIMUM BULLDUST | Gelding | CHESTNUT | 272727 | 01/12/2022 | Stud Book | Not Eligible |
| OPTIMUM AVA - HSH | Mare | BROWN | 257814 | 22/12/2019 | Stud Book | Not Eligible |
| OPTIMUM ATHENA | Mare | GREY | 257810 | 29/10/2018 | Stud Book | Eligible |
| OPTIMUM ARIA - HSH | Mare | BROWN | 232693 | 02/12/2011 | Stud Book | Not Eligible |
| OPTIMO | Mare | BAY | 25545 | Stud Book | Not Eligible | |
| OPTIMISTIC | Mare | CHESTNUT | 36597 | 07/11/1973 | Stud Book | Not Eligible |
| OPTIC BLACK | Mare | BLACK | 76447 | 01/08/1981 | Stud Book | Deceased |
| OPS SASSY CHICK | Mare | BAY | C1-257922 | 08/10/2019 | First Cross | Not Eligible |
| OPRAH | Mare | BROWN | C1-249839 | 20/01/2015 | First Cross | Eligible |
| OPRA | Mare | BROWN | 77804 | 26/10/1990 | Stud Book | Not Eligible |
| OPPORTUNITY - HSH | Stallion | BLACK | 41423 | 01/03/1975 | Stud Book | Deceased |
| OPPORTUNIST | Mare | BAY | C2-235304 | 04/10/2014 | Second Cross | Eligible |
| OPIUM OF GOLD - HSH | Mare | BROWN | 139001 | 10/09/1997 | Stud Book | Not Eligible |
| OPIUM | Gelding | BAY | 10292 | 05/11/1969 | Stud Book | Deceased |
| OPIE | Gelding | BAY | C1-258667 | 23/12/2019 | First Cross | Not Eligible |
| OPHIR ZOE - HSH | Mare | BAY | 103434 | 11/04/1986 | Stud Book | Eligible |
| OPHIR ZINNIA - HSH | Mare | BAY | 185810 | 13/11/2006 | Stud Book | Eligible |
| OPHIR ZINGER | Gelding | CHESTNUT | 256904 | 26/11/2017 | Stud Book | Eligible |
| OPHIR ZENA - HSH | Mare | CHESTNUT | 172026 | 06/09/2003 | Stud Book | Deceased |
| OPHIR ZAC - HSH | Stallion | BAY | F158579 | 15/10/2000 | Foal Recorded | Not Eligible |
| OPHIR YELLA - HSH | Stallion | BAY | 184384 | 01/12/2006 | Stud Book | Not Eligible |
| OPHIR YASMIN - HSH | Mare | BAY | 121596 | 22/01/1992 | Stud Book | Deceased |
| OPHIR XRAY - HSH | Stallion | BAY | F188610 | 07/10/2008 | Foal Recorded | Not Eligible |
| OPHIR WONDER - HSH | Mare | BAY | 182966 | 20/03/2006 | Stud Book | Eligible |
| OPHIR WIZARD - HSH | Gelding | BAY | 119114 | 09/04/1991 | Stud Book | Not Eligible |
| OPHIR WISH - HSH | Mare | BAY | F138196 | 24/06/1997 | Foal Recorded | Not Eligible |
| OPHIR WISDOM - HSH | Stallion | BAY | 134362 | 12/04/1996 | Stud Book | Eligible |
| OPHIR WINFRY - HSH | Mare | GREY | 144519 | 14/04/1998 | Stud Book | Not Eligible |
| OPHIR WILLOW | Mare | BAY | C2-263928 | 03/09/2020 | Second Cross | Eligible |
| OPHIR WILL | Gelding | BAY | 60844 | 05/09/1978 | Stud Book | Not Eligible |
| OPHIR WHISPER - HSH | Mare | GREY | 237081 | 20/01/2014 | Stud Book | Eligible |
| OPHIR WARRIOR - HSH | Stallion | BROWN/BLACK | 181709 | 04/10/2005 | Stud Book | Deceased |
| OPHIR WANITA - HSH | Mare | BAY | 138492 | 09/11/1997 | Stud Book | Not Eligible |
| OPHIR WALES - HSH | Gelding | BAY | 178114 | 26/11/2004 | Stud Book | Not Eligible |
| OPHIR WADE - HSH | Stallion | BAY | 138197 | 05/05/1997 | Stud Book | Not Eligible |
| OPHIR VOLTAIRE - HSH | Gelding | BAY | 188615 | 10/10/2008 | Stud Book | Eligible |
| OPHIR VISION - HSH | Stallion | DUN | 114036 | 09/10/1988 | Stud Book | Deceased |
| OPHIR VIOLA - HSH | Mare | CHESTNUT | 178116 | 02/02/2005 | Stud Book | Eligible |
| OPHIR VINITA - HSH | Mare | DUN | 177769 | 29/12/2006 | Stud Book | Eligible |
| OPHIR VIENNA - HSH | Mare | BAY | 184374 | 13/03/2007 | Stud Book | Eligible |
| OPHIR VICTORIOUS - HSH | Mare | BAY | 138303 | 23/11/1996 | Stud Book | Not Eligible |
| OPHIR VICTORIA - HSH | Mare | PALOMINO | 120269 | 11/10/1991 | Stud Book | Eligible |
| OPHIR VICTOR - HSH | Stallion | PALOMINO | F9850 | 08/09/1977 | Foal Recorded | Deceased |
| OPHIR VI TECH - HSH | Gelding | DUN | 177741 | 02/02/2004 | Stud Book | Not Eligible |
| OPHIR VENTURE - HSH | Stallion | BAY | F181711 | 02/09/2005 | Foal Recorded | Not Eligible |
| OPHIR VELVET - HSH | Mare | BLACK | 122676 | 18/09/1992 | Stud Book | Deceased |
| OPHIR VELOCITY - HSH | Gelding | CHESTNUT | 188614 | 13/09/2008 | Stud Book | Not Eligible |
| OPHIR VANITY - HSH | Mare | BAY | 134365 | 15/04/1996 | Stud Book | Deceased |
| OPHIR VAIN - HSH | Stallion | BLACK | F188613 | 15/10/2008 | Foal Recorded | Not Eligible |
| OPHIR UNIQUE | Mare | BAY | 126537 | 17/09/1993 | Stud Book | Deceased |
| OPHIR TYSON - HSH | Stallion | BLACK/GREY | 153061 | 07/11/1999 | Stud Book | Not Eligible |
| OPHIR TYANN - HSH | Mare | BAY | 129492 | 05/11/1994 | Stud Book | Deceased |
| OPHIR TY - HSH | Gelding | BAY | 121599 | 18/02/1992 | Stud Book | Not Eligible |
| OPHIR TWIST - HSH | Stallion | BAY | F115837 | 15/10/1989 | Foal Recorded | Deceased |
| OPHIR TWINKLE | Mare | BAY | 67526 | 01/11/1982 | Stud Book | Not Eligible |
| OPHIR TRINKET - HSH | Mare | BAY | 262385 | 14/09/2019 | Stud Book | Not Eligible |
| OPHIR TRIFECTA - HSH | Mare | BAY | 254362 | 20/12/2017 | Stud Book | Eligible |