Nicolás Álvarez (Spanish pronunciation: [nikoˈlas ˈalβaɾes]; born 8 June 1996) is a Peruvian tennis player.

On the junior tour, Álvarez has a career high ITF junior ranking of 17 achieved in March 2014.

Álvarez has a career high ATP singles ranking of 295 achieved on January 6, 2020. He also has a career high ATP doubles ranking of 345, achieved on March 2, 2020.

Álvarez has represented Peru at Davis Cup. In Davis Cup he has a win–loss record of 6–5.