Vernon De Marco Morlacchi (born 18 November 1992) is a professional footballer who plays as a defender for Cypriot First Division club Apollon Limassol.

Born in Córdoba, De Marco moved to Mallorca, Spain with his family in 2001, following the Corralito measures as part of the 1998–2002 Argentine great depression.

De Marco made his professional debut on 18 July 2015, coming on as a second-half substitute for Jozef-Šimon Turík in a 1–0 home loss against AS Trenčín.

[11] While fans have discussed his nomination for UEFA Euro 2020, De Marco was first called up to the senior national team by Štefan Tarkovič for three 2022 World Cup qualifiers against Slovenia, Croatia and Cyprus in September 2021.

[13] Born an Argentine citizen, De Marco received Slovak citizenship in late May 2021, following an application earlier that year, making him eligible to represent Slovakia internationally.