Sakarya may refer to:

Adapazarı, a capital district and the capital city of Sakarya Province in Turkey
Battle of Sakarya, a major battle in the Turkish War of Independence
Sakarya electoral district, which has seven seats in the Grand National Assembly of Turkey
Sakarya Province, in Turkey
Sakarya River, a river in central-northwestern Turkey
Sakarya Sports Hall, a multi-purpose sports venue in Serdivan, Adapazarı, Sakarya Province, Turkey
Sakarya University, a public university in Turkey