| Daisuke Nakai | |
| Position: | Infielder / Coach |
| Team: | Yokohama DeNA BayStars |
| Number: | 89 |
| Birth Date: | 27 November 1989 |
| Bats: | Right |
| Throws: | Right |
| Debutdate: | May 12 |
| Debutyear: | 2009 |
| Debutteam: | Yomiuri Giants |
| Debutleague: | NPB |
| Finaldate: | October 20 |
| Finalyear: | 2021 |
| Finalteam: | Yokohama DeNA BayStars |
| Finalleague: | NPB |
| Statleague: | NPB |
| Stat1label: | Batting average |
| Stat1value: | .243 |
| Stat2label: | Home runs |
| Stat2value: | 16 |
| Stat3label: | RBI |
| Stat3value: | 65 |
| Teams: | As player
As coach
|
Daisuke Nakai (中井 大介, born November 27, 1989) is a Japanese professional baseball infielder for the Yokohama DeNA BayStars in Japan's Nippon Professional Baseball.