Oscar Alfredo Ustari (born 3 July 1986) is an Argentine professional footballer who plays as a goalkeeper for Major League Soccer club Inter Miami.

[17] He made his debut for his new team four days later, keeping a clean sheet in a 1–0 home win over Kidderminster Harriers in the fourth round of the FA Cup.

[22] On 2 November 2017, in the dying minutes of the 1–1 home draw with Tigres UANL while at the service of the latter club, he suffered an horrific injury to his left knee after kicking a long ball forward,[23] going on to be sidelined for several months.

[25] He subsequently represented Pachuca in the Mexican top division,[26] Audax Italiano of Chilean Primera División[27] and Major League Soccer's Inter Miami.

[29] On 15 May 2006, he was named by senior side coach José Pekerman to the 2006 FIFA World Cup squad alongside his future Getafe teammate Abbondanzieri, being an unused member.