| Ares Kozojedský potůček | ♂ | 2025 | CZ | Kozojedský potůček (Věra Kuchtová) | ČMKU/AKE/955/25 | ♂ Almighty Ash Out of Mind | ♀ Akribie Quick Angel |
| Ares of Jabu's Home | ♂ | 2017 | – | Of Jabu's Home (Elisabeth Groenveld) | LOS 753829 | ♂ Kopets Red And Tan Darwin | ♀ Sheep Scare's Miah |
| Argos Mate C.J. Cleverly Crazy | ♂ | 2013 | CZ | Bc. Lucie Zochová | ČMKU/AKE/257/13 | ♂ Joker Kelpiebrink | ♀ Crazy Black Mount Mckinkey |
| Ariel Ze Statku Vlckovice | ♀ | 2016 | CZ | ze Statku Vlčkovice (an Počepický) | CMKU/AKE/357/16 | ♂ Vinny | ♀ Gréta Xapatán |
| Arika Eyes of the Storm | ♀ | 2024 | HU | Péter Takács | MET.Kelpie78/24 | ♂ Kelmi Maahinen | ♀ Belatar´s Toowoomba Twister |
| Aristocratic Dingo Te Salutant | ♂ | 2012 | CZ | Lenka Fuksová | ČMKU/AKE/202/12 | ♂ Knowing My Job Dinky-Di-Dutch | ♀ Big Chocolate z Lodice |
| Arkosligeti Magic Eyes Kakapo | ♂ | 2013 | – | – | METKELPIE126/13 | ♂ Belatar's Carroty | ♀ Arkosligeti Magic Eyes Enigma |
| Arlleine Be Lacami | ♀ | 2017 | CZ | Eva Lacourt | ČMKU/AKE/446/17 | ♂ Boyd's Bullriding Cheeky Cooper | ♀ Caramella Dai Muratori |
| Armando Dai Muratori | ♂ | 2010 | CZ | Jitka Kubištová | ČMKU/AKE/138/10 | ♂ Rostaggens Gideon | ♀ C.I.E. Britney z Lhotecké linie |
| Arny Kozojedský potůček | ♂ | 2025 | CZ | Kozojedský potůček (Věra Kuchtová) | ČMKU/AKE/956/25 | ♂ Almighty Ash Out of Mind | ♀ Akribie Quick Angel |
| Aron Life Runner | ♂ | 2023 | CZ | Hanka Hanušová | ČMKU/AKE/813/23 | ♂ Düwelkes van de Barge Baghero | ♀ Bailey Wise FastForJoy |
| Arria Semira Ganster Town | ♀ | 2022 | CZ | Irena Semencová | ČMKU/AKE/732/22 | ♂ Strong Excalibur Red Radimus | ♀ Julissa Black Mount Mckinkey |
| Arrogant Grey Di Casa Hesselink | ♀ | 2020 | – | Kristýna Nozarová Přibylová | LO211641 | ♂ Buckaroo-Nero | ♀ Cara di Casa Hesselink |
| Arrogant Hades Dari Domba | ♂ | 2022 | CZ | Dari Domba (Ivana Beránková) | CMKU/AKE/716/22 | ♂ Aero Messi C.J. Cleverly Crazy | ♀ Avada Kedavra Not so Easy |
| Arrogant Prada Bohemian Tarn | ♀ | 2017 | CZ | Bohemian Tarn (Karolína Šafaříková) | CMKU/AKE/431/17 | ♂ Evallens Black & Tan Orizon | ♀ Bottega Venetta Rebell Represent |
| Arrow Crazy Legs | ♂ | 2014 | CZ | – | CMKU/AKE/318/14 | – | ♀ Aurélia Dai Muratori |
| Art of Move FastForJoy | ♂ | 2018 | CZ | – | CMKU/AKE/466/10 | ♂ Aero Messi C.J. Cleverly Crazy | ♀ Easy Dai Muratori |
| Artie Kozojedský potůček | ♀ | 2025 | CZ | Kozojedský potůček (Věra Kuchtová) | ČMKU/AKE/958/25 | ♂ Almighty Ash Out of Mind | ♀ Akribie Quick Angel |
| Artur Magic Princ of Faerie Fox | ♂ | 2018 | – | – | SE23195/2019 | ♂ Obi-Wan Yooranah | ♀ A Little Chelsey of Schmikes Yard |
| Aruba of Jabu's Home | ♀ | 2017 | – | Of Jabu's Home (Elisabeth Groenveld) | LOS 753832 | ♂ Kopets Red And Tan Darwin | ♀ Sheep Scare's Miah |