The Goya Award for Best New Actor (Spanish: Premio Goya al mejor actor revelación) is one of the Goya Awards, Spain's principal national film awards. It is given in honor of an actor, in one of their first prominent film roles, who has delivered an outstanding leading or supporting performance in a film.

The category was first presented at the ninth edition of the Goya Awards, with Saturnino García being the first winner for his performance as Justino in Justino, un asesino de la tercera edad.

Multiple winners and nominees in the category have went on to win or be nominated for the other two male performance categories at the Goya Awards (Best Actor and Best Supporting Actor). Namely, nominees Javier Cámara, Eduard Fernández, Luis Tosar, and David Verdaguer, have all won both Best Actor and Best Supporting Actor. Additionally, 1996 winner Santiago Segura won Best New Director three years later for Torrente, the Dumb Arm of the Law.

For the 39th ceremony, the Academy of Cinematographic Arts and Sciences of Spain introduced a modification consisting of the requirement of an authorization signed by the actor accepting his participation in the Goya Awards".

As of the 2025 ceremony, Pepe Lorente is the most recent winner in this category for his role as Mauricio Aznar in The Blue Star.

In the list below the winner of the award for each year is shown first, followed by the other nominees.