2009 Rakuten Japan Open Tennis Championships

The 2009 Rakuten Japan Open Tennis Championships was a men's tennis tournament played on outdoor hard courts. It was the 36th edition of the event known that year as the Rakuten Japan Open Tennis Championships, and was part of the 500 Series of the 2009 ATP World Tour. It was held at the Ariake Coliseum in Tokyo, Japan, from October 5 through October 11, 2009. Second-seeded Jo-Wilfried Tsonga won the singles title.

Seeds

 * rankings are based on the rankings of September 28, 2009

Other entrants
The following players received wildcards into the singles main draw:
 * 🇯🇵 Tatsuma Ito
 * 🇯🇵 Go Soeda
 * 🇯🇵 Takao Suzuki

The following players received entry from the qualifying draw:
 * Marco Chiudinelli
 * Ernests Gulbis
 * 🇹🇷 Marsel İlhan
 * 🇫🇷 Édouard Roger-Vasselin

Singles
🇫🇷 Jo-Wilfried Tsonga defeated 🇷🇺 Mikhail Youzhny, 6–3, 6–3
 * It was Tsongas 3rd title of the year and 5th of his career.

Doubles
🇦🇹 Julian Knowle / 🇦🇹 Jürgen Melzer defeated 🇬🇧 Ross Hutchins / 🇦🇺 Jordan Kerr, 6–2, 5–7, [10–8]