The 2014 Rakuten Japan Open Tennis Championships was a men's tennis tournament played on outdoor hard courts. It was the 41st edition of the event known this year as the Rakuten Japan Open Tennis Championships, and part of the 500 Series of the 2014 ATP World Tour. It was held at the Ariake Coliseum in Tokyo, Japan, from September 29 till October 5, 2014.
| Event | W | F | SF | QF | Round of 16 | Round of 32 | width=85 | Q | width=85 | Q2 | width=85 | Q1 |
| Singles[1] | 500 | 300 | 180 | 90 | 45 | 0 | 20 | 10 | 0 | |||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubles | 0 |
| width=130 bgcolor=#ededed | Event | width=80 bgcolor=lime | W | width=85 bgcolor=thistle | F | width=85 bgcolor=ffff00 | SF | width=85 bgcolor=ffebcd | QF | width=85 bgcolor=afeeee | Round of 16 | width=85 bgcolor=afeeee | Round of 32 | width=85 | Q2 | width=85 | Q1 |
| style=background:#f5f5f5 | Singles | $296,850 | $133,830 | $63,395 | $30,580 | $15,600 | $8,580 | $965 | $535 | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| style=background:#f5f5f5 | Doubles | $87,700 | $39,550 | $18,650 | $9,020 | $4,630 |
| Country | Player | Rank1 | Seed | |
|---|---|---|---|---|
| Stan Wawrinka | 4 | 1 | ||
| David Ferrer | 5 | 2 | ||
| Milos Raonic | 6 | 3 | ||
| Kei Nishikori | 8 | 4 | ||
| Jo-Wilfried Tsonga | 12 | 5 | ||
| Roberto Bautista Agut | 17 | 6 | ||
| Kevin Anderson | 19 | 7 | ||
| Alexandr Dolgopolov | 23 | 8 |
The following players received wildcards into the singles main draw:
The following players received entry from the qualifying draw:
Juan Martín del Potro (wrist injury)
Lleyton Hewitt
Gaël Monfils Benoît Paire
Radek Štěpánek
Roberto Bautista Agut (quad strain)
Jarkko Nieminen (hip injury) Édouard Roger-Vasselin (fatigue)| Country | Player | Country | Player | Rank1 | Seed | |
|---|---|---|---|---|---|---|
| Bob Bryan | Mike Bryan | 2 | 1 | |||
| Ivan Dodig |  Brazil | Marcelo Melo | 13 | 2 | ||
| Spain | Marcel Granollers | Spain | Marc López | 23 | 3 | |
| Eric Butorac | Raven Klaasen | 42 | 4 |
The following pairs received wildcards into the doubles main draw:
The following pair received entry from the qualifying draw:
The following pair received entry as lucky losers:
Jo-Wilfried Tsonga (stomach virus)
Kei Nishikori (hip injury)See main article: 2014 Rakuten Japan Open Tennis Championships – Singles.
Kei Nishikori defeated 
Milos Raonic, 7–6(7–5), 4–6, 6–4See main article: 2014 Rakuten Japan Open Tennis Championships – Doubles.
Pierre-Hugues Herbert / 
Michał Przysiężny defeated Ivan Dodig / Marcelo Melo, 6–3, 6–7(3–7), [10–5]
