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Last name Cassidy (Cassidy
, Буч
, Кэссиди
, among others...) , in the world, is a common cognomen. The family name Cassidy is habitual in Ireland, where it is quite a common surname, British Virgin Islands, and Bermuda (explore the name in all countries). Measured by absolute frequency, this name is the most popular in the United States, the United Kingdom, and Ireland. Also, Cassidy is the forename as well as the last name.