Naoyuki Ōi
| Born | 10 January 1983 |
|---|---|
| Sport country | Japan |
| Nickname | "Sushi Boom" |
| Professional | 2005 |
| Best finish | Semi finals 2012 WPA World Nine-ball Championship |
Naoyuki Ōi (大井 直幸, Ōi Naoyuki; born 10 January 1983) is a Japanese professional pool player. Ōi is best known for finishing second in the World Ten-ball Championship twice, and represented Japan at the World Cup of Pool on six occasions.