Nahuel Valentini (born 16 November 1988) is an Argentine footballer who plays as a central defender for Italian Serie C Group B club Sestri Levante.

On 16 August 2018, he joined Serie B club Ascoli on a one-year contract with one-year extension option.

[2] On 21 January 2021 he was loaned to Serie B club Vicenza.

[3] On 18 August 2023, Valentini joined SPAL on a one-season deal.

[4] On 18 September 2024, Valentini signed with Sestri Levante.