Bandırma (Turkish: [banˈdɯɾma]) is a city in northwestern Turkey with 161,894 inhabitants as of 2021 on the Sea of Marmara. Bandırma is a district of Balıkesir Province. Bandırma is located in the south of the Marmara Sea, in the bay with the same name, and is an important port city. It is approximately two hours away from Istanbul, Izmir and Bursa.
Bandırma may be reached by land, sea, air and rail. Regular ship trips are made to Tekirdağ and Istanbul from Bandırma every day. The accelerated train services between Izmir and Bandırma, which are made every day in connection with the ferry, offer a different transportation alternative.
Bandırma is home to the fifth-largest port in Turkey, second in the Marmara sea to Istanbul. The annual average trade volume of Bandırma Port, which meets 90% of the exports from Balıkesir province, is 800 million dollars. Bandırma's twin towns are Kamen, Germany, Tongxiang, China, and Mardin, Turkey.