| Impostor Izzy Devil of Highland | ♀ | 2021 | CZ | – | CMKU/AKE/662/21 | – | ♀ Cheeky Chucky Devil of Highland |
| Impressive Inesse Dai Muratori | ♀ | 2021 | CZ | – | CMKU/AKE/677/21 | – | ♀ Yacatis Hasty-Daydream |
| Impy Xapatan | ♂ | 2014 | CZ | – | CMKU/AKE/265/14 | – | ♀ Fidži Xapatán |
| Incredible Ironman Dai Muratori | ♂ | 2021 | CZ | – | CMKU/AKE/672/21 | – | ♀ Yacatis Hasty-Daydream |
| Indeed Divine A.B of Chocolate Dynamite | ♀ | 2016 | – | – | LOS 741129 | ♂ Attack Black Mount Mckinkey | ♀ Birri's Last One of Chocolate Dynamite |
| Indy Brown Mount Mckinkey | ♂ | 2017 | CZ | Marcela Nováková | ČMKU/AKE/435/17 | ♂ Suthenskys Shamelesstar C.C.D. | ♀ Catrina Black Mount Mckinkey |
| Indy´s Image Dai Muratori | ♀ | 2021 | CZ | – | CMKU/AKE/678/21 | – | ♀ Yacatis Hasty-Daydream |
| Inferno Black Mount Mckinkey | ♂ | 2017 | CZ | Marcela Nováková | ČMKU/AKE/436/17 | ♂ Suthenskys Shamelesstar C.C.D. | ♀ Catrina Black Mount Mckinkey |
| Inge Black Mount Mckinkey | ♀ | 2017 | CZ | Marcela Nováková | ČMKU/AKE/438/17 | ♂ Suthenskys Shamelesstar C.C.D. | ♀ Catrina Black Mount Mckinkey |
| Int.Ch;ch.Pl; M³.Ch.Pl Ww13, Ch.Hu, Ch.At He's My Belfast Asocjacja | ♂ | 2010 | PL | – | PKR.I -66854 | ♂ Skovfarmen's Black Fast Boy | ♀ Absolut Black Mount Mckinkey |
| Intelligent Brown Rebell Represent | ♂ | 2023 | CZ | Rebell Represent (Kristýna Nozarová Přibylová) | CMKU/AKE/789/23 | ♂ Aero Messi C.J. Cleverly Crazy | ♀ Drug Mafia Rebell Represent |
| Into the Wild Rebell Represent | ♂ | 2023 | CZ | Rebell Represent (Kristýna Nozarová Přibylová) | CMKU/AKE/790/23 | ♂ Aero Messi C.J. Cleverly Crazy | ♀ Drug Mafia Rebell Represent |
| Irie Isis Devil of Highland | ♀ | 2021 | CZ | – | CMKU/AKE/664/21 | – | ♀ Cheeky Chucky Devil of Highland |
| Irish Bushmills Red Radimus | ♂ | 2013 | – | – | – | – | ♀ Pl.J.Ch. Ch.Pl, Jww13, J.Ch.Hu. C.I.B. C.I.E. Red Dublin Kelpiebrink |
| Irish Connemara Red Radimus | ♀ | 2013 | – | – | – | – | ♀ Pl.J.Ch. Ch.Pl, Jww13, J.Ch.Hu. C.I.B. C.I.E. Red Dublin Kelpiebrink |
| Irish Kilbeggan Red Radimus | ♂ | 2013 | – | – | – | – | ♀ Pl.J.Ch. Ch.Pl, Jww13, J.Ch.Hu. C.I.B. C.I.E. Red Dublin Kelpiebrink |
| Irish Midleton Red Radimus | ♂ | 2013 | – | – | – | – | ♀ Pl.J.Ch. Ch.Pl, Jww13, J.Ch.Hu. C.I.B. C.I.E. Red Dublin Kelpiebrink |
| Irish Redbreast Red Radimus | ♂ | 2013 | – | – | – | – | ♀ Pl.J.Ch. Ch.Pl, Jww13, J.Ch.Hu. C.I.B. C.I.E. Red Dublin Kelpiebrink |
| Irish Tullamore Dew Red Radimus | ♀ | 2013 | – | – | – | – | ♀ Pl.J.Ch. Ch.Pl, Jww13, J.Ch.Hu. C.I.B. C.I.E. Red Dublin Kelpiebrink |
| Ironside Björn Rebell Represent | ♂ | 2023 | CZ | Rebell Represent (Kristýna Nozarová Přibylová) | CMKU/AKE/791/23 | ♂ Aero Messi C.J. Cleverly Crazy | ♀ Drug Mafia Rebell Represent |
| Irony of Fate Rebell Represent | ♀ | 2023 | CZ | Rebell Represent (Kristýna Nozarová Přibylová) | CMKU/AKE/792/23 | ♂ Aero Messi C.J. Cleverly Crazy | ♀ Drug Mafia Rebell Represent |
| Ishigos Akira | ♀ | 2015 | DE | – | VDH 15/13500154 | – | ♀ Evallens Black & Tan Ishigo |
| Ishigos Amilo | ♂ | 2015 | DE | – | VDH 15/13500152 | – | ♀ Evallens Black & Tan Ishigo |
| Ishigos Anouk | ♀ | 2015 | DE | – | VDH 15/13500155 | – | ♀ Evallens Black & Tan Ishigo |
| Ishigos Ares | ♂ | 2015 | DE | – | VDH 15/13500153 | – | ♀ Evallens Black & Tan Ishigo |
| Ishigos Batista | ♂ | 2016 | DE | – | VDH 16/13500194 | ♂ Kip Doakimo Dog | ♀ Evallens Black & Tan Ishigo |
| It&It Jrch Intch Sloch Black River Kennel Insomnia | ♀ | 2016 | – | – | LO16110653 | – | – |
| Itchy Xapatan | ♂ | 2014 | CZ | – | CMKU/AKE/266/14 | – | ♀ Fidži Xapatán |
| I´m Itty-Bitty Yoni Devil of Highland | ♀ | 2021 | CZ | – | CMKU/AKE/661/21 | – | ♀ Cheeky Chucky Devil of Highland |
| Jack | ♂ | 2015 | FI | – | ER28745/19 | ♂ Bamba Toohey | ♀ Kataran Cass |
| Jack Sparrow Rebell Represent | ♂ | 2023 | CZ | Rebell Represent (Kristýna Nozarová Přibylová) | CMKU/AKE/853/23 | ♂ Empathic Commander Rebell Represent | ♀ Arrogant Grey Di Casa Hesselink |
| Jaenela Kelpiebrink | ♀ | 2021 | NL | – | NHSB3224893 | – | ♀ Femke Caobrink |
| Jaimie Xapatan | ♀ | 2014 | CZ | – | CMKU/AKE/282/14 | – | ♀ Foxy Xapatán |
| Jakari Dai Muratori | ♀ | 2023 | CZ | – | CMKU/AKE/819/23 | – | ♀ Hasty´s Hope Dai Muratori |
| Jango Xapatan | ♂ | 2014 | CZ | – | CMKU/AKE/279/14 | – | ♀ Foxy Xapatán |
| Jarrah Baralga Warrigal | ♂ | 2013 | NL | – | NHSB2937860 | ♂ Mountainmist The Fugitive | ♀ Numbat Merinda Warrigal |
| Jata Black Mount Mckinkey | ♀ | 2017 | CZ | Marcela Nováková | ČMKU/AKE/448/17 | ♂ Apple Brown Rebell Represent | ♀ Fatal Black Mount Mckinkey |
| Javelin ATGM Rebell Represent | ♀ | 2023 | CZ | Rebell Represent (Kristýna Nozarová Přibylová) | CMKU/AKE/857/23 | ♂ Empathic Commander Rebell Represent | ♀ Arrogant Grey Di Casa Hesselink |
| Jekku Rebell Represent | ♂ | 2023 | CZ | Rebell Represent (Kristýna Nozarová Přibylová) | CMKU/AKE/854/23 | ♂ Empathic Commander Rebell Represent | ♀ Arrogant Grey Di Casa Hesselink |
| Jekyll Rebell Represent | ♂ | 2023 | CZ | Rebell Represent (Kristýna Nozarová Přibylová) | CMKU/AKE/855/23 | ♂ Empathic Commander Rebell Represent | ♀ Arrogant Grey Di Casa Hesselink |
| Jessie Brown Mount Mckinkey | ♀ | 2017 | CZ | – | CMKU/AKE/449/17 | ♂ Apple Brown Rebell Represent | ♀ Fatal Black Mount Mckinkey |
| Jessie Dai Muratori | ♀ | 2023 | CZ | – | CMKU/AKE/820/23 | – | ♀ Hasty´s Hope Dai Muratori |
| Jessie Xapatan | ♀ | 2014 | CZ | – | CMKU/AKE/277/14 | – | ♀ Foxy Xapatán |
| Jet Kelpiebrink | ♀ | 2019 | NL | – | NHSB3153187 | – | ♀ Morrigan Kelpiebrink |
| Jewel Dai Muratori | ♀ | 2023 | CZ | – | CMKU/AKE/821/23 | – | ♀ Hasty´s Hope Dai Muratori |
| Jimboomba Break The Silence Marshmello | ♂ | 2026 | NL | – | NHSB3379728 | – | ♀ Jimboomba Whoopee Dreams Come True |
| Jimboomba Djalu | ♀ | 2026 | NL | – | NHSB3379733 | – | ♀ Jimboomba Whoopee Dreams Come True |
| Jimboomba Karmeliet Brewed With Patience | ♀ | 2026 | NL | – | NHSB3379732 | – | ♀ Jimboomba Whoopee Dreams Come True |
| Jimboomba Lightning Salto | ♀ | 2026 | NL | – | NHSB3379731 | – | ♀ Jimboomba Whoopee Dreams Come True |
| Jimboomba Power of Amber Stone | ♀ | 2026 | NL | – | NHSB3379730 | – | ♀ Jimboomba Whoopee Dreams Come True |