| Ideal Isamu Kimbilio | ♂ | 2023 | CZ | Helena Kučerová | ČMKU/AKE/833/23 | ♂ Diamond In the Sky Cleverly Crazy | ♀ Nannette Xapatán |
| Idol Iggy Devil of Highland | ♂ | 2021 | CZ | – | CMKU/AKE/657/21 | – | ♀ Cheeky Chucky Devil of Highland |
| Idske Kelpiebrink | ♂ | 2022 | NL | – | NHSB3270562 | – | ♀ Boukje Kelpiebrink |
| Iggy Pop Black Mount Mckinkey | ♂ | 2017 | CZ | Marcela Nováková | ČMKU/AKE/434/17 | ♂ Suthenskys Shamelesstar C.C.D. | ♀ Catrina Black Mount Mckinkey |
| Imhotep Insatu Devil of Highland | ♂ | 2021 | CZ | – | CMKU/AKE/658/21 | – | ♀ Cheeky Chucky Devil of Highland |
| Immortal Indy Devil of Highland | ♂ | 2021 | CZ | – | CMKU/AKE/659/21 | – | ♀ Cheeky Chucky Devil of Highland |
| Impy Xapatan | ♂ | 2014 | CZ | – | CMKU/AKE/265/14 | – | ♀ Fidži Xapatán |
| Incredible Ironman Dai Muratori | ♂ | 2021 | CZ | – | CMKU/AKE/672/21 | – | ♀ Yacatis Hasty-Daydream |
| Indy Brown Mount Mckinkey | ♂ | 2017 | CZ | Marcela Nováková | ČMKU/AKE/435/17 | ♂ Suthenskys Shamelesstar C.C.D. | ♀ Catrina Black Mount Mckinkey |
| Inferno Black Mount Mckinkey | ♂ | 2017 | CZ | Marcela Nováková | ČMKU/AKE/436/17 | ♂ 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 |
| Irish Bushmills 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 |
| 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 |
| Ishigos Amilo | ♂ | 2015 | DE | – | VDH 15/13500152 | – | ♀ 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 |
| Itchy Xapatan | ♂ | 2014 | CZ | – | CMKU/AKE/266/14 | – | ♀ Fidži Xapatán |
| 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 |
| Jango Xapatan | ♂ | 2014 | CZ | – | CMKU/AKE/279/14 | – | ♀ Foxy Xapatán |
| Jarrah Baralga Warrigal | ♂ | 2013 | NL | – | NHSB2937860 | ♂ Mountainmist The Fugitive | ♀ Numbat Merinda Warrigal |
| 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 |
| Jimboomba Break The Silence Marshmello | ♂ | 2026 | NL | – | NHSB3379728 | – | ♀ Jimboomba Whoopee Dreams Come True |
| Jimy Jack Devil of Highland | ♂ | 2023 | CZ | – | CMKU/AKE/795/23 | – | ♀ Chimi Changa Devil of Highland |
| Joker Kelpiebrink | ♂ | 2010 | NL | – | NHSB2807143 | ♂ Almdalens Simon | ♀ Kiwi Kelpiebrink |
| Joko Dai Muratori | ♂ | 2023 | CZ | – | CMKU/AKE/817/23 | – | ♀ Hasty´s Hope Dai Muratori |
| Jolly Jeremiah Kimbilio | ♂ | 2024 | CZ | Helena Kučerová | ČMKU/AKE/916/24 | ♂ Hilarious Hachicco Kimbilio | ♀ Gentle Geekii Kimbilio |
| Jolly Joker Devil of Highland | ♂ | 2023 | CZ | – | CMKU/AKE/796/23 | – | ♀ Chimi Changa Devil of Highland |
| Joul Xapatan | ♂ | 2014 | CZ | – | CMKU/AKE/280/14 | – | ♀ Foxy Xapatán |
| Jupiter Dai Muratori | ♂ | 2023 | CZ | – | CMKU/AKE/818/23 | – | ♀ Hasty´s Hope Dai Muratori |
| Jurrasic Joker Rebell Represent | ♂ | 2023 | CZ | Rebell Represent (Kristýna Nozarová Přibylová) | CMKU/AKE/856/23 | ♂ Empathic Commander Rebell Represent | ♀ Arrogant Grey Di Casa Hesselink |
| Just Man Xapatan | ♂ | 2014 | CZ | – | CMKU/AKE/281/14 | – | ♀ Foxy Xapatán |
| Karana Big Kev | ♂ | 2015 | AU | – | WKC61593 | ♂ Karana Abba II | ♀ Karana Daisey III |
| Karana Web | ♂ | 2016 | – | – | AS53863/2016 | ♂ Cotway Beaver | ♀ Karana Alice |
| Karrawarra Al Capone | ♂ | 2011 | AU | Karrawarra | WKCA3M-21490-11 | – | – |
| Karrawarra Banjo II | ♂ | 2010 | AU | Karrawarra | WKCA3M-18731-10 | – | – |
| Karrawarra Bear | ♂ | 2010 | AU | Karrawarra | WKCA3M-20280-10 | – | – |
| Karrawarra Ben Hall | ♂ | 2011 | AU | Karrawarra | WKCA3M-21488-11 | – | – |
| Karrawarra Blocker | ♂ | 2010 | AU | Karrawarra | WKCA2M-19014-10 | – | – |
| Karrawarra Blue III | ♂ | 2010 | AU | Karrawarra | WKCA3M-18738-10 | – | – |
| Karrawarra Boozer | ♂ | 2010 | AU | Karrawarra | WKCA3M-18724-10 | ♂ Karrawarra Roy IV | ♀ Paddys Pearl |
| Karrawarra Boy III | ♂ | 2011 | AU | Karrawarra | WKCA4M-35465-11 | – | – |
| Karrawarra Cobba | ♂ | 2010 | AU | Karrawarra | WKCA3M-18729-10 | – | – |
| Karrawarra Creamy | ♂ | 2010 | AU | Karrawarra | WKCA3M-18728-10 | – | – |