| ITF USA F18 | 06/15 19:30 | 26 | Shawn H. Hadavi v Naoki Nakagawa | 3-6,6-7 | |
| ITF USA F18 | 06/14 21:30 | 25 | Ricardo Rodriguez v Naoki Nakagawa | 6-7,4-6 | |
| ITF Japan F7 | 06/09 01:00 | 27 | Haru Inoue v Naoki Nakagawa | 6-3,6-3 | |
| ITF Japan F7 | 06/08 04:25 | 26 | Sora Fukuda v Naoki Nakagawa | 6-2,5-7,4-6 | |
| ITF Japan F7 | 06/08 01:00 | - | Sora Fukuda v Naoki Nakagawa | 6-2,5-7,4-6 | |
| ITF Japan F7 | 06/06 04:00 | 25 | Johan Nikles v Naoki Nakagawa | 1-6,1-6 | |
| ITF China F9 | 06/02 03:30 | 27 | Jose Statham v Naoki Nakagawa | 6-3,6-4 | |
| ITF China F9 | 06/01 02:00 | 26 | Naoki Nakagawa v Ze Zhang | Retired | |
| ITF China F9 | 05/31 04:10 | 25 | Naoki Nakagawa v Hao Wu | 6-2,6-4 | |
| ITF China F8 | 05/23 04:00 | 25 | Naoki Nakagawa v Takuto Niki | 3-6,2-6 | |
| ITF China F7 | 05/19 06:25 | 27 | Naoki Nakagawa v Chuhan Wang | 6-7,6-4,2-6 | |
| ITF China F7 | 05/18 02:00 | 26 | Zhe Li v Naoki Nakagawa | 6-3,3-6,4-6 | |
| ITF China F7 | 05/16 07:40 | 25 | Thomas Fancutt v Naoki Nakagawa | 6-3,6-7,4-6 | |
| ITF USA F16 | 05/03 15:50 | 25 | Isaiah Strode v Naoki Nakagawa | 6-3,6-3 | |
| ITF USA F15 | 04/25 15:00 | 25 | Lukas Ollert v Naoki Nakagawa | 7-6,6-3 | |
| ITF USA F14 | 04/19 14:00 | 25 | Naoki Nakagawa v Cameron Silverman | 5-7,6-4,2-6 | |
| ITF Italy F7 | 04/05 17:15 | 26 | Salvatore Caruso v Naoki Nakagawa | 6-1,7-5 | |
| ITF Italy F7 | 04/04 10:30 | 25 | Walter Trusendi v Naoki Nakagawa | 3-6,6-2,3-6 | |
| ITF Italy F7 Qual | 04/02 07:30 | 54 | Naoki Nakagawa v Alexander Weis | 6-7,6-3,6-0 | |
| ITF Italy F7 Qual | 04/01 07:30 | 54 | Naoki Nakagawa v Georg Winkler | 6-4,7-5 | |
| ITF Croatia F3 | 03/26 09:00 | 29 | Naoki Nakagawa v Yannick Vandenbulcke | 1-6,2-6 | |
| ITF Croatia F3 | 03/25 10:00 | 28 | Jurij Rodionov v Naoki Nakagawa | 4-6,6-2,4-6 | |
| ITF Croatia F3 | 03/24 10:00 | 27 | Alen Avidzba v Naoki Nakagawa | 3-6,6-4,2-6 | |
| ITF Croatia F3 | 03/23 09:00 | 26 | Naoki Nakagawa v Nino Serdarusic | 7-6,1-6,6-4 | |
| ITF Croatia F3 | 03/22 10:05 | 25 | Alexandar Lazarov v Naoki Nakagawa | 2-6,0-6 | |
| ITF Croatia F3 | 03/20 13:30 | 60 | Naoki Nakagawa v Alen Avidzba | 3-6,4-6 | |
| ITF Croatia F3 | 03/20 09:00 | 60 | Naoki Nakagawa v Marco Miceli | 7-6,6-2 | |
| ITF Croatia F3 | 03/19 08:30 | 60 | Naoki Nakagawa v Lukas Krainer | 6-4,6-2 | |
| ITF Croatia F3 | 03/18 10:30 | 60 | Naoki Nakagawa v Marin Jurkovic | 6-0,6-1 | |
| ITF Croatia F2 | 03/12 13:00 | 60 | Naoki Nakagawa v Tim Van Terheijden | 3-6,7-5,3-6 |
Naoki Nakagawa (中川直樹, Nakagawa Naoki, born 19 November 1996) is a Japanese tennis player.
Nakagawa has a career high ATP singles ranking of world No, 531 achieved on 24 July 2017. He also has a career high ATP doubles ranking of world No. 726 achieved on 30. July 2018.
As a junior, Nakagawa reached his highest ranking of number 9 in the world in the combined singles and doubles ITF junior ranking system. His junior tenure was highlighted and capped off by winning the boys' doubles title at the 2014 US Open where he alongside Australia's Omar Jasika defeated the Brazilian duo or João Menezes and Rafael Matos in straight sets 6–3, 7–6(8–6).
Nakagawa has reached 10 singles finals, with a record of 3 wins and 7 losses. Additionally, he has reached 6 doubles finals with a record of 2 wins and 4 losses. All 16 combined final appearances he has made come at the ITF Futures level.