Quahogs are also commonly referred to as hard clams, round clams, or chowder clams. They are also known by other names in different regions, such as littleneck clams, topnecks, and cherrystones. Quahogs are a species of clam that are often used in different culinary applications, such as clam chowder, baked clams, and clam casino. These clams are found along the Atlantic coast of North America and are highly prized for their meaty texture and distinctive flavor. When searching for quahogs at a seafood market, asking for any of these synonyms should result in finding the desired shellfish.