Nikolás Sánchez Izquierdo (born 17 March 1999) is a Spanish tennis player. He has a career high ATP singles ranking of world No. 238 achieved on 19 September 2022 and a doubles ranking of No. 433 achieved on 2 December 2024.
Sánchez Izquierdo made his debut on the ATP Tour as a qualifier at the 2024 ATP Lyon Open, losing to sixth seed Tomás Martín Etcheverry in the first round.