- Cantura, Holst (of: Canturo – Athlet Z – Lepanto)
- Canturo, Holst (of: Cantus – Calando I – Landego)
- Cantus, Holst (of: Caletto I – Roman – Marabu II)
- Capitano, Holst (of: Corporal – Ramzes)
- Capitol I, Holst (of: Capitano – Maximus – Ramzes)
- Capri VI, Trak
- Caprimond, Trak (of: Karon)
- Caramel, xx (of: Wiesenklee – Cranach)
- Cardento, Holst (of: Capitol I – Lord – Sacramento Song)
- Caretello B, Holst (of: Caretino – Calypso IV – Wahnfried)
- Caretino, Holst (of: Caletto II – Metellus – Aldato)
- Caridor Z, Holst (of: Caretino – Lantaan – Lepanto)
- Carlita, Holst
- Carmen, Holst
- Carmen II, SF
- Carolus I, Holst (of: Capitol I – Roman – Ladykiller)
- Carpaccio, Holst (of: Caretino – Lantaan – Ladykiller)
- Carry, Hann (of: Caprimond – Laterit – Kibenka)
- Carthago, Holst (of: Capitol I – Calando I)
- Casper (Eurocommerce Berlin), Holst (of: Cassini I – Caretino – Fernando)
