Across the nation of Indonesia, millions of citizens live without using a traditional family surname. Naming customs vary significantly among the country's more than 1,300 distinct ethnic groups. In many regions, individuals historically received only a single personal name recorded on official birth documents.
The Javanese ethnic group, which represents the largest population in the country, traditionally does not pass down family names to younger generations. Instead of relying on inherited surnames, Javanese children receive unique given names or simple patronymics created from a father's personal name. Some of the older generations usually have a single name, like Sukarno, Solikin, Suharto, Ngadiman, etc.
To simplify administrative records, the Indonesian government issued a legal regulation in May 2022 requiring legal names on official documents to contain at least two words. This policy helps prevent administrative confusion and passport identification issues when citizens travel abroad. However, the legal rule does not force older citizens or traditional families to create or adopt inherited family surnames.
Reasons for the Absence of Surnames
Historians explain that traditional Javanese society was built around a vertical social structure emphasizing hierarchy and loyalty between subjects and leaders. Under this societal pattern, personal identity was determined by social position and direct relationships to authority rather than extended family clans. Personal names therefore served as individual identity markers instead of shared collective labels for extended relatives.
Read also: Thai Names Explained: Why Are Their Surnames So Long and Nicknames So Short?
During the era of Dutch colonial rule, official surname usage was largely restricted to members of the nobility and high-ranking officials. Common agricultural families did not need inherited family titles to verify land ownership or manage familial inheritances. While aristocratic elites used inherited title names such as Suryonegoro or Hadinegoro, ordinary commoners maintained simple individual given names.
Cultural and spiritual philosophies also influenced how parents selected names for their children. A traditional Javanese belief known as kabotan jeneng cautions that giving a child a name that is overly heavy or prestigious can cause bad luck or illness. Choosing modest personal given names was considered a much safer practice for preserving a child's health and well-being.
Ethnic Groups and Communities That Use Surnames
Although surnames are not standard across Java, several other Indonesian ethnic groups strictly preserve hereditary family and clan names. The Batak people of North Sumatra carry patrilineal clan names known as marga, which children inherit directly from their fathers. Famous Batak marga names include Ginting, Nasution, Simanjutak, Lubis, Harahap, and more.
In West Sumatra, the Minangkabau people practice a matrilineal system where clan names are passed down from mothers to their children. Meanwhile, the Minahasan people living in North Sulawesi maintain well-known family surnames such as Toar, Lumimuut, Nayoan, Wenas, and Luntungan. Ambonese communities in the Maluku Islands similarly pass down family names like Lawalata, Matulessy, and Latumahina.
Specific diaspora populations also maintain inherited family surnames that emerged from unique historical migrations. For example, Javanese communities in Suriname use surnames derived from nineteenth-century ancestors, such as Kromowidjojo and Somohardjo. Likewise, the Tondano Javanese in North Sulawesi preserve inherited surnames such as Modjo and Arbi inherited from exiled historical figures.
Read also: Most People in Myanmar Don't Have Last Names, Here's Why
