Marco Trungelliti is an Argentine professional tennis player who competes mainly on the ATP Challenger Tour. On 6 April 2026, Trungelliti reached a career-high singles ranking of world No. 76 and became the second-oldest man in the Open Era, at age 36, to debut in the top 100 in the ATP rankings, after reaching the final in Marrakech. He also reached a best doubles ranking of No. 174 on 1 April 2013.