Meller's Chameleon
Trioceros melleri
- Least concern
- Card rarity: Common
- Reptiles

Meller's chameleon, also known commonly as the giant one-horned chameleon, is a species of lizard in the family Chamaeleonidae. Meller's chameleon is the largest species of chameleon from the African mainland, i.e., the largest of the chameleons not native to Madagascar.
Classification
- Class
- Reptilia
- Order
- Squamata
- Family
- Chamaeleonidae
- Genus
- Trioceros