Marco Trungelliti (Spanish pronunciation: [ˈmaɾko tɾuɲɟʝeˈliti];[1] born 31 January 1990) is an Argentine professional tennis player and competes mainly on the ATP Challenger Tour and ITF Futures, both in singles and doubles.

Trungelliti made his ATP Tour debut at the 2012 Croatian Open where he advanced through the 3 qualifying rounds by defeating Juan-Martín Aranguren 6–3, 6–2, Jose Anton Salazar Martin 7–6(4), 6–3 and Adrián Menéndez Maceiras 6–3, 6–2 to make his first appearance in a main draw.

He reached the second round in both Grand Slams, beating Jozef Kovalík on the hard courts of the first major of the season, and achieving his first and only victory against a top player, defeating 10th seed Marin Čilić, on the Parisian clay.

At the 2018 French Open Trungelliti drove for 10 hours from Barcelona to Paris to be a late replacement for the injured Nick Kyrgios who had been due to face his compatriot Bernard Tomic.

[5] The Argentine saved six match points to defeat American Aleksander Kovacevic in the final round of qualifying at the US Open,[6] to make just his eight main draw appearance at a Major.