Gonzalo Alejandro Crettaz Ortega (born 28 February 2000), sometimes known simply as Gonzalo, is an Argentine footballer who plays for Spanish club CD Castellón as a goalkeeper.

Born in Buenos Aires, Crettaz moved to Spain at early age and joined Málaga CF's youth setup in 2017, from Levante UD.

He made his senior debut with the reserves on 25 August 2019, starting in a 4–0 Tercera División away routing of Alhaurín de la Torre CF.

[1] On 16 November 2019, as Munir was out on international duty, Crettaz made his first team debut by playing the full 90 minutes of a 0–1 loss at AD Alcorcón in the Segunda División championship.

[4] On 7 July 2023, after suffering relegation, he moved to fellow league team CD Castellón on a two-year deal,[5] and was an undisputed starter as the club achieved promotion to the second division.