Renato Zanelli (April 1, 1892 – March 25, 1935) was an Italian-Chilean operatic baritone and later tenor, particularly associated with heroic Italian and German roles, notably Verdi's Otello.

His voice was discovered at a social party by Angelo Querzé, an Italian tenor who had sung in Chile in 1894 in the local premiere of "Otello".

He went on to sing widely in Italy and South America in roles as diverse as Pollione, Don José, Andrea Chénier, Canio, Tristan and Siegmund.

Zanelli had a rich voice and was equally successful as a baritone and a tenor, his early death from cancer cutting short a brilliant career.

His artistry is preserved, however, on a number of recordings of operatic arias which he made at the height of his powers in the two vocal categories that he had mastered.