Sinaga is a Batak surname (marga). 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

• Porela, synonym of Sinaga, a genus of moths

This disambiguation page lists articles associated with the title Sinaga.
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