The Dolphin Gull (Leucophaeus scoresbii), sometimes erroneously called the Red-billed Gull (a somewhat similar but unrelated species from New Zealand), is a gull native to southern Chile and Argentina, and the Falkland Islands. It is a coastal bird inhabiting rocky, muddy and sandy shores and is often found around seabird colonies. They have grayish feathers, and the feathers on their wings are a darker shade. They lay 2 to 3 eggs in December. Dolphin Gulls eat many things from mussels to carrion.

The scientific name commemorates the English explorer William Scoresby.