Rex Features
The Motorcycles Diaries star, 29, issued a statement through Canana Films to announce the news.
It read: "This statement is to say that, after so much speculation and comments, the actors Dolores Fonzi and Gael García Bernal are indeed expecting a baby at the start of next year."
Bernal met the Argentine actress while they were shooting Private Lives in 2002.
He was previously linked to Natalie Portman.
