Marcel Granollers Pujol (born April 12, 1986, in Barcelona) is a professional tennis player from Spain who turned professional in 2003. He reached his highest singles ranking of World Number 44 on February 16, 2009, and his highest doubles ranking of World Number 51. As of late 2008, Granollers is the second-youngest of the many Spanish players in the ATP Top 100 (after Rafael Nadal).
Granollers Pujol made the first round of the Wimbledon tournament in 2006, but lost to Andrei Pavel. In the qualifying rounds, he beat Stéphane Robert, Konstantinos Economidis and Marco Chiudinelli.
In 2007, Granollers Pujol won the Napoli and Rome Challengers for doubles with Flavio Cipolla, and the Maspalomas Challenger for doubles with Marc López. At the 2007 French Open, he made the second round of the men's doubles tournament with Feliciano López before they lost in three close sets to the number 4 seeds Fabrice Santoro and Nenad Zimonjić, who won 7–5, 1–6, 6–4. He lost at the French and Wimbledon Championships both times in the second round of qualifying for the main draws.