Did Indonesians Reach Madagascar? Evidence Points to Austronesian Expansion, Not Direct Indonesian Voyages

No direct evidence exists of Indonesians (as a historical national/ethnic group) voyaging to Madagascar.

However, the Malagasy people of Madagascar speak an Austronesian language (Malagasy) most closely related to Ma'anyan (Barito River, Borneo). Genetic studies confirm ~50–60% Austronesian ancestry (maternal line) mixed with ~40–50% Bantu African ancestry (paternal line).

The Austronesian Expansion (c. 2000 BCE – 1000 CE)

• Seafarers from Taiwan → Philippines → Indonesia → Madagascar (and across Pacific).
• Reached Madagascar ~500–800 CE via Indian Ocean routes (possibly direct, possibly via East African coast).
• Brought outrigger canoes, rice cultivation, banana, taro, coconut, chickens.
• Later Bantu migrants from East Africa mixed with them.

So: Ancestors of modern Indonesians' relatives (Austronesians from Borneo) settled Madagascar—not "Indonesians" per se. The modern Indonesian state didn't exist; the migration was part of a 4,000-year oceanic diaspora.