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Surname Abt (Abbott , Abt , Абт ) , throughout the world, is a common last name. The family name Abt is characteristic of Latin America and the Caribbean, particularly Antigua and Barbuda, where it is a common surname, Saint Vincent and the Grenadines, where it is quite a common surname, and Saint Kitts and Nevis (explore the name in all countries). Not in comparison with a country's population, the name is most common in the United States, the United Kingdom, and Australia. Much less frequently, Abt is the forename as well as the last name.