2004 Monte Carlo Masters
Date	19–25 April
Edition	98th
Category	ATP Masters Series
Draw	64S / 24D
Prize money	$2,220,000
Surface	Clay / outdoor
Location	Roquebrune-Cap-Martin, France
Venue	Monte Carlo Country Club
Champions
Singles
Guillermo Coria[1]
Doubles
Tim Henman / Nenad Zimonjić[2]
← 2003 · Monte Carlo Masters · 2005 →

The 2004 Monte Carlo Masters was a men's tennis tournament played on outdoor clay courts. It was the 98th edition of the Monte Carlo Masters and was part of the Masters Series of the 2004 ATP Tour. It took place at the Monte Carlo Country Club in Roquebrune-Cap-Martin in France from 19 April through 25 April 2004. Third-seeded Guillermo Coria won the singles title.

Finals

Singles

Guillermo Coria defeated Rainer Schüttler 6–2, 6–1, 6–3

• It was Coria's 2nd title of the year and the 8th of his career. It was his 1st Masters title of the year and his 2nd overall.

Doubles

Tim Henman / Nenad Zimonjić defeated Gastón Etlis / Martín Rodríguez 7–5, 6–2

• It was Henman's only title of the year and the 15th of his career. It was Zimonjić's only title of the year and the 8th of his career.