Gastón Matías Campi (born 6 April 1991) is an Argentine professional footballer who plays as a defender for San Lorenzo.
On 2 November 2013, in his second game, he scored his first goal against Gimnasia La Plata and made it 2–0, earning the title and Reinaldo Carlos confidence "Mustard" Merlo.
At the beginning of 2014, Campi had a good preseason and internal competition with the new reinforcement Ex Velez, Francisco Cerro, who becomes undisputed and one of the best players in a disastrous level team points will arise.
And only when Merlo decides to send the bank, Campi enters a minute left and stamped a real goal that represents the tie 3–3 against Estudiantes on the hour.
In July 2016, Campi joined English Championship side Reading on trial for the duration of their pre-season camp in The Netherlands.