The Day Slaves Also Gained Surnames: How the 1909 Minjeok Act Changed Korean Identity

Published on February 25, 2026

Today, it is taken for granted that all Koreans are born with a surname, but just over 100 years ago, that was not the case. Until the Joseon Dynasty, many slaves and some commoners, who constituted a significant portion of the total population, often did not have surnames, which was a clear indication of their social status. However, in 1909, the 'Minjeok Act (民籍法)' promulgated during the Korean Empire brought about fundamental changes to the lives and identities of Koreans. By mandating that all citizens possess a surname, this law became a decisive turning point in reshaping the long-standing surname culture.

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People Without Surnames, and the Social Meaning of Surnames

Surnames during the Joseon Dynasty were primarily the exclusive property of the aristocratic class. Surnames symbolized the lineage passed down from ancestors and the honor of the family, and were recorded and managed for generations through family registries (jokbo). In contrast, many people from the slave or commoner classes were called only by their given names without surnames, or adopted names based on their place of origin. This clearly marked the difference in social status, and the absence of a surname meant exclusion from social rights or honor.

Promulgation of the 1909 Minjeok Act and its Background

On March 23, 1909, the Korean Empire promulgated the 'Minjeok Act' to establish a modern population management system and clarify the rights and duties of individual citizens. One of the core provisions of this law was to mandate that all citizens register their surname (姓) and 본 (본; clan seat). This was also part of an effort to establish a modern state system just before the full-scale colonization by the Japanese Empire.

The Process of Acquiring Surnames: Selection and Concentration Phenomena

Following the implementation of the Minjeok Act, countless people who did not have surnames were required to register them. In this process, the following phenomena emerged.

These phenomena ultimately became one of the main reasons why the 'Kim, Lee, Park' surnames account for an overwhelming majority in Korean society today. The concentration of surname distribution was further deepened as a large number of people without surnames were incorporated into specific surnames.

How the Minjeok Act Changed Korean Identity

Beyond simply bestowing surnames, the Minjeok Act profoundly influenced the personal and social identity of Koreans.

The 1909 Minjeok Act, by granting surnames to slaves and commoners, became a turning point for all Koreans to establish their identity as modern individuals. This is remembered as a historical event of no small significance, profoundly influencing the surname distribution, social stratification, and individual identity perception in Korean society.

Written by The My Korean Name Team

Our team is dedicated to exploring and sharing the rich culture behind Korean names. Learn more about us.