Chow Chows are known for their distinctive blue-black tongues. They are medium-sized dogs with a thick double coat and a strong, independent personality.
Shar-Peis have blue-black tongues that match their unique wrinkled skin. They are medium-sized dogs with a calm and loyal temperament.
Thai Ridgebacks are a rare breed known for their blue-black tongues. They are medium-sized dogs with a strong prey drive and a protective nature.
Eurasiers, a breed originating from Germany, can have blue tongues. They are medium-sized dogs with a balanced and friendly temperament.