The term "Last Name" refers to the family name or surname that identifies individuals as part of a particular family or lineage. It is typically passed down from one generation to the next and can reveal information about a person's ancestry. For example, in many cultures, the last name may indicate the region or profession of the family, such as Smith for metalworkers or Baker for those in the baking profession. In many societies, the last name is used in formal settings, such as on legal documents or in professional environments. It helps distinguish individuals with the same first name, like John Smith and John Doe. Understanding the significance of last names can provide insights into cultural heritage and family history.