Osmany Santiago Uriarte Mestre (born 4 June 1995) is a Cuban male volleyball player.

Uriarte Mestre was part of the Cuba men's national volleyball team at the 2014 FIVB Volleyball Men's World Championship in Poland.

Uriarte Mestre was one of the six players of the Cuban national volleyball team arrested and charged with aggravated rape in July 2016 in Tampere, Finland.

[2][3][4] He was found guilty in September 2016 and was sentenced to five years in prison.

[3][5] His sentence was ultimately reduced to four years.