Sinaga is a Batak surname. It may refer to:
- Anicetus Bongsu Antonius Sinaga (born 1941), Indonesian Roman Catholic bishop
- Ferdinand Sinaga (born 1988), Indonesian footballer
- Hadrianus Sinaga (1912–1981), Indonesian politician and government minister
- Mangaradja Sinaga (1924–2000), Indonesian colonel and politician
- Reynhard Sinaga (1983-), Indonesian convicted of rape in the United Kingdom
- Saktiawan Sinaga (born 1982), Indonesian footballer
See also
edit- Porela, synonym of Sinaga, a genus of moths