Cognomen אלונסו (Alonso 
, אלונסו 
) , throughout the world, is a widespread surname. The family name אלונסו is characteristic of British Virgin Islands, where it is a common surname, Spain, and Paraguay (explore the name in all countries). Not in comparison with a country's population, it is commonest in Mexico, Spain, and Argentina. Also, אלונסו is the forename as well as the last name.