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Cognomen Sigal (Sigal , סיגל , سيجال ) , all around the world, is quite a common family name. The cognomen Sigal is habitual in Israel, where it is quite a common surname, Estonia, where it is quite a rare surname, and Argentina. In absolute terms, the name is most common in Israel, India, and the United States. Likewise, Sigal is the forename as well as the last name.