Dolly Varden is a type of trout that is commonly found in North America. However, the term "Dolly Varden" also has synonyms that refer to similar species of fish. Some of the synonyms for Dolly Varden include Arctic char, bull trout, and brook trout. These fish are similar in appearance and habitat, and are often found in cold streams or lakes across North America. The different species of trout vary in size, color, and flavor, but they are all highly sought after by anglers for their fighting spirit and delicious taste. Whether you're fly fishing in the mountains or casting a line in a local stream, you may encounter a Dolly Varden or one of its synonyms.