2009 Sony Ericsson Open – Men's singles

Andy Murray defeated Novak Djokovic in the final, 6–2, 7–5 to win the men's singles tennis title at the 2009 Miami Open.

Nikolay Davydenko was the reigning champion, but did not participate that year due to a left heel injury.

Seeds
All seeds receive a bye into the second round. • # 🇪🇸 Rafael Nadal (quarterfinals)

• # Roger Federer (semifinals)

• # 🇷🇸 Novak Djokovic (final)

• # 🇬🇧 Andy Murray (champion)

• # 🇺🇸 Andy Roddick (quarterfinals)

• # 🇦🇷 Juan Martín del Potro (semifinals)

• # 🇫🇷 Gilles Simon (fourth round)

• # 🇪🇸 Fernando Verdasco (quarterfinals)

• # 🇫🇷 Gaël Monfils (fourth round)

• # 🇫🇷 Jo-Wilfried Tsonga (quarterfinals)

• # 🇪🇸 David Ferrer (fourth round)

• # Fernando González (third round)

• # 🇺🇸 James Blake (third round)

• # 🇦🇷 David Nalbandian (second round)

• # 🇪🇸 Tommy Robredo (third round)

• # Stanislas Wawrinka (fourth round)

• # Marin Čilić (third round)

• # 🇨🇿 Radek Štěpánek (fourth round)

• # 🇪🇸 Nicolás Almagro (second round)

• # 🇷🇺 Igor Andreev (third round)

• # 🇨🇿 Tomáš Berdych (fourth round)

• # 🇷🇺 Marat Safin (third round)

• # 🇸🇪 Robin Söderling (second round)

• # 🇫🇷 Richard Gasquet (withdrew due to a shoulder injury)

• # 🇷🇺 Dmitry Tursunov (third round)

• # Ivo Karlović (second round)

• # 🇺🇸 Mardy Fish (second round)

• # 🇩🇪 Nicolas Kiefer (third round)

• # 🇩🇪 Rainer Schüttler (third round)

• # 🇦🇹 Jürgen Melzer (second round)

• # 🇫🇷 Paul-Henri Mathieu (third round)

• # 🇪🇸 Feliciano López (third round)

Seeds
• # 🇮🇱 Dudi Sela (qualifying competition, lucky loser)

• # 🇧🇷 Thomaz Bellucci (qualified)

• # Fred Gil (qualified)

• # 🇦🇷 Brian Dabul (first round)

• # 🇩🇪 Björn Phau (qualifying competition, lucky loser)

• # 🇰🇿 Evgeny Korolev (qualifying competition)

• # Paul Capdeville (qualifying competition)

• # 🇺🇸 Wayne Odesnik (qualifying competition)

• # 🇦🇷 Leonardo Mayer (first round)

• # 🇺🇸 Robert Kendrick (qualified)

• # 🇩🇪 Denis Gremelmayr (first round)

• # 🇪🇨 Nicolás Lapentti (first round)

• # 🇺🇸 Kevin Kim (qualified)

• # 🇦🇹 Daniel Köllerer (first round, retired due to elbow injury)

• # 🇰🇿 Andrey Golubev (qualifying competition)

• # 🇮🇹 Fabio Fognini (first round)

• # 🇺🇸 Vincent Spadea (qualifying competition)

• # 🇩🇪 Michael Berrer (qualifying competition)

• # 🇩🇪 Simon Greul (qualifying competition)

• # Roko Karanušić (qualifying competition)

• # 🇮🇹 Flavio Cipolla (qualifying competition)

• # 🇨🇦 Frank Dancevic (qualified)

• # 🇧🇪 Olivier Rochus (first round)

• # 🇧🇷 Thiago Alves (first round)

Qualifiers
• # 🇨🇦 Frank Dancevic

• # 🇧🇷 Thomaz Bellucci

• # Fred Gil

• # 🇺🇸 Taylor Dent

• # 🇺🇸 John Isner

• # 🇺🇸 Michael Russell

• # 🇺🇸 Kevin Kim

• # 🇧🇦 Amer Delić

• # 🇩🇪 Benjamin Becker

• # 🇺🇸 Robert Kendrick

• # 🇧🇷 Ricardo Mello

• # 🇰🇿 Mikhail Kukushkin

Lucky losers
• # 🇮🇱 Dudi Sela

• # 🇩🇪 Björn Phau