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Last name Baird (Baird , Берд , بيرد , and others...) , worldwide, is a common surname. The cognomen Baird is habitual in Trinidad and Tobago, where it is quite a common surname, Barbados, and Guernsey (explore the name in all countries). Measured by absolute frequency, it is the most numerous in the United States, the United Kingdom, and Canada. Much less frequently, Baird is the forename as well as the last name.