Nikola Aćin

Nikola Aćin (born 19 December 1999) is a Serbian swimmer. He competed in the men's 4 × 100 metre freestyle relay event at the 2020 Summer Olympics together with Andrej Barna, Uroš Nikolić and Velimir Stjepanović. They finished 10th with time 3:13.71, setting the new Serbian national record.