Slow Waltz was the name of a dance in the International Standard dance category of ballroom dances. Now it is officially called simply "Waltz", but "Slow Waltz" is still in the informal use, to distinguish from other types of waltzes such as the Viennese Waltz, which is a commonly practiced Waltz. Some confusion occurs when dancers come from these countries to places like the United States where "waltz" events and invitations are not what they might expect.
