Luka Drobnjak (; born 25 April 2004) is a Serbian professional footballer who plays as a defender for Serbian SuperLiga club Napredak Kruà ¡evac.
In March 2021, Drobnjak signed his first professional contract with Vojvodina. On 21 July 2024, Drobnjak made his first-team debut, playing full 90 minutes in 3:1 away win at Tekstilac Odà ¾aci.