Horses
| Name | Level | Club | Owner | Birth year | Sex | FER ID | FEI ID |
|---|---|---|---|---|---|---|---|
| Obama 2R | — | Equitas | Cibi Lorand | 2020 | stallion | RO26247164 | |
| OBEISSE DE REGOR | — | Team Bucur Hermannstadt | Daria Copos | 2014 | mare | RO26243493 | 107LO08 |
| Obora'S Coupe | — | — | Ceausescu Cristian | — | RO26239583 | ||
| Obora’s E Willy | A & B | Equester | Cotea Cristina | 2011 | gelding | RO26210802 | |
| Obsesia | — | — | Avramiuc Alina | — | RO26239590 | ||
| OCEAN 23 | — | — | — | RO26246323 | 108YP73 | ||
| Ocsy | — | — | Patricia Abrudan | — | RO26239603 | ||
| Odin | — | Universitatea Cluj Napoca | Gioroceanu Roxana | 2016 | gelding | RO26239610 | |
| Odin Vdl | — | — | Primex Sport Horses LTD | — | RO26242443 | ||
| Ogano du Rouet | — | Equipark | Yaroslava Yakusheva | 2017 | gelding | RO26203283 | |
| Ogica | — | — | Romsilva | 2002 | stallion | RO26239622 | |
| Ohigo | — | Toni | Boer Paula | 2020 | gelding | RO26247203 | |
| Oki Doki | D & E | CSA Steaua Bucureşti | Jumbei Victoria | 2015 | gelding | RO26212011 | |
| Okion | — | — | Gabos Eszter | — | RO26239634 | ||
| O.K. MACOEMBA | — | — | gelding | RO26249171 | 108XL63 | ||
| Olaf K | — | — | Primex Sport Horses | 2006 | gelding | RO26243373 | |
| Olimpia | E & F | La Salcii | Chimina Teona | 2007 | mare | RO26201803 | |
| Olimpyc | — | Black Sea Horses | Adrian Butuca | 2019 | gelding | RO26211852 | |
| Olive Blue | — | Vectra Zărneşti | Isabel Agirbicean | 2019 | mare | RO26245710 | |
| Olivia | — | Alba Iulia | Cristina Crăciun + Isabella Hüttemann | 2019 | mare | RO26244114 | |
| OLYMPIA BELLA VAN DE PRINSENSTAD | — | — | Rositsa Mateva | gelding | RO26248924 | ||
| Olympic | — | Black Sea Horses | Emma Butuca | 2019 | gelding | RO26211720 | |
| OLYMPIC DE LAZEROU | — | — | — | RO26248070 | 109OZ75 | ||
| Olympic Dream 6 | B & C | Terra Cavalli | Ana Maria Diaconu | 2009 | stallion | RO26201810 | 105HQ84 |
| Olympic Lady Dutch | D & E | Equestria | Ozana Moraru | 2019 | mare | RO26210061 | 108OU55 |
| Olympus | B & C | Equipark | Sorin Gheorghe | 2019 | gelding | RO26203303 | |
| Ona | — | — | Victoria Matekovits | — | RO26239641 | ||
| Onix | — | Wolf | Bicsok Anett | 2019 | gelding | RO26207144 | |
| Operencia | — | — | Dragoi Mariana | — | RO26239653 | ||
| Ophelia | — | 163 PLOPI | Cojocariu Damian | 2021 | mare | RO26247380 | |
| Oranjeleeuwin | — | Eden Ranch | Radu Elena | 2019 | mare | RO26202163 | |
| Oriana | — | — | Chelariu Oriana | — | RO26239660 | ||
| ORIENT EXPRESS ES | — | — | — | RO26246140 | 109AI50 | ||
| Orinoco | — | CSA Steaua Bucureşti | Ana Barabas | 2011 | stallion | RO26210814 | |
| Orion | — | Remetei Lovas Sportklub | Korodi Réka | 2017 | gelding | RO26203860 | 109SM87 |
| Orion Gidran Xlvii-14 | — | Romsilva | Gábos Eszter | 2014 | mare | RO26232521 | |
| Oriver Du Roiseau | — | — | Moraru Ozana | — | RO26239672 | ||
| Orpheno | — | Vectra Zărneşti | Liliana Mirela Stoian | 2016 | gelding | RO26212023 | 107RU18 |
| OSCAR C | — | Black Sea Horses | Joanna Clarke | 2019 | gelding | RO26220503 | 109HF09 |
| OSCAR V G | — | — | gelding | RO26250093 | |||
| OSCAR V G2 | — | — | — | ||||
| OSKAR V G | — | Zaraza | Stefan Ionuț | 2019 | stallion | RO26202473 | 108TC73 |
| Oslo | D & E | Equs Art | Iftime Valeriu | 2019 | stallion | RO26212960 | |
| Otis | — | — | Matei Alexandru | — | RO26239684 | ||
| OVIGO F Z | — | — | Rositsa Mateva | 2021 | gelding | RO26245210 | |
| Paaay Ohfs | — | Team Bucur Hermannstadt | Dinu Beatrice | 2018 | gelding | RO26243722 | |
| Pablo - Colado O | — | — | Valentina Frenkeva - Belcheva | 2020 | gelding | RO26230982 | |
| Pablo Pilot | — | — | Cizmaru Daniel | — | RO26239691 | ||
| Palada | — | — | Ivan Manavski | 2016 | mare | RO26230994 | |
| Palermo Tren | — | CAVALLUNA | Florentina Chitu | 2020 | mare | RO26243133 |