The Ušće Towers (Serbian Cyrillic: Пословни центар Ушће, romanized: Poslovni centar Ušće) are two 25-story mixed-use skyscrapers located at Mihajlo Pupin Boulevard in the New Belgrade municipality of Belgrade, Serbia. The first tower, 98 meters tall, was the tallest building in Serbia and the Balkans for 15 years until the construction of the Genex Tower in 1979. It was also the second-tallest freestanding structure, after the Avala Tower, in Serbia during this time.