The 2003 Monte Carlo Masters was a men's tennis tournament played on outdoor clay courts. It was the 97th edition of the Monte Carlo Masters and was part of the Tennis Masters Series of the 2003 ATP Tour. It took place at the Monte Carlo Country Club in Roquebrune-Cap-Martin in France from 14 April through 20 April 2003.
The men's field was headlined by Juan Carlos Ferrero, Carlos Moyá and Andy Roddick. Other top seeds in the field were Albert Costa, Jiří Novák, David Nalbandian, Paradorn Srichaphan and Rainer Schüttler.
Rafael Nadal, then aged 16, made his tournament debut in this year, losing to Guillermo Coria in the Round of 16. This would be the last time in which he would be defeated at the event until 2013.[1]
See main article: 2003 Monte Carlo Masters – Singles. 
Juan Carlos Ferrero defeated 
Guillermo Coria 6–2, 6–2
See main article: 2003 Monte Carlo Masters – Doubles. 
Mahesh Bhupathi / 
Max Mirnyi defeated 
Michaël Llodra / Fabrice Santoro 6–4, 3–6, 7–6 (8–6)