What is the largest type of lobster?

The largest type of lobster is the Maine lobster (Homarus americanus), also known as the American lobster or the North Atlantic lobster. This species of lobster is found in the waters of the North Atlantic Ocean, specifically along the coasts of Canada and the northeastern United States. Maine lobsters are known for their large size, with some individuals measuring up to 3 feet (0.9 meters) in length and weighing up to 44 pounds (20 kilograms).