Aleksa Šaponjić (Serbian Cyrillic: Алекса Шапоњић, born 4 June 1992) is a Serbian water polo player, and a member of the Serbia men's national water polo team.

His first notable competition with his national team was the 2012 European Championship in Eindhoven, the outcome was a win.

He currently attends the University of California, Berkeley and plays for the CA Golden Bears water polo team.

On 29 January, Šaponjić won the European Championship with his national team beating in the final Montenegro by 9–8.

[1] Šaponjić was a member of the bronze medal winning Serbian team in water polo at the 2012 Summer Olympics.