| Português | Español | Français | English |
|---|---|---|---|
| Cabra | Cabra | Chèvre | Female-Goat |
| Cachorro | Perro | Chien | Dog |
| Camelo | Camello | Chameau | Camel |
| Camundongo | Ratón | Souris | Mouse |
| Canguru | Canguro | Kangourou | Kangaroo |
| Caranguejo | Cangrejo | Crabe | Crab |
| Carneiro | Carnero | Mouton | Sheep |
| Castor | Castor | Castor | Beaver |
| Cavalo | Caballo | Cheval | Horse |
| Cegonha | CigÜeña | Cigogne | Stork |
| Cigarra | Cigarra; Chicharra | Cigale | Cicada |
| Cisne | Cisne | Cygne | Swan |
| Cobra | Cobra; Culebra; Serpiente; Vibora | Serpent | Snake |
| Coelho | Conejo | Lapin | Rabbit |
| Coruja | Lechuza | Chouette | Owl |
| Corvo | Cuervo | Corbeau | Crow |
| Crocodilo | Cocodrilo | Crocodile | Crocodile |
| Crustáceo | Crustáceo | Crustacé | Crustacean |