Vanja Drkusic (born 30 October 1999) is a Slovenian footballer who plays as a defender for Russian Premier League club Sochi and the Slovenia national team.

In December 2015, Drkusic joined Dutch top-flight side Heerenveen, after receiving interest from Maribor, Dinamo Zagreb and Atalanta. In August 2019, he signed for Rende in the Italian third division. Before the second half of 2019–20, Drkusic signed for Slovenian team Bravo. On 23 February 2020, he debuted for Bravo during a 2–1 win against Tabor Sezana. On 11 July 2020, Drkusic scored his first goal for Bravo during a 1–1 draw with Domzale.

On 24 January 2022, Drkusic signed for Russian Premier League side Sochi for an alleged fee of €100,000. On 27 August 2022, he extended his contract with Sochi to 2025.

Drkusic made his debut for Slovenia on 26 March 2023 in a European Championship qualifier against San Marino. He has represented Slovenia at youth international levels from under-17 to under-21.