| Netchuu! Pro Yakyuu 2003 - Aki no Nighter Matsuri | 2003 | ps2 |
| Netchuu! Pro Yakyuu 2004 | 2004 | ps2 |
| Nettou Golf | 2000 | dreamcast |
| Nettou! Powerful Koushien | 2010 | nds |
| New 3D Golf Simulation - Devil's Course | 1993 | genesis, snes |
| New 3D Golf Simulation - Harukanaru Augusta | 1991 | genesis, snes |
| New 3D Golf Simulation - Pebble Beach no Hatou | 1992 | genesis, snes |
| New 3D Golf Simulation - Waialae no Kiseki | 1994 | genesis |
| New 3D Golf Simulation - Waialae no Kiseki | 1992 | snes |
| New Style Boutique - Update 1.1 | 2012 | 3ds |
| New Style Boutique 2 - Fashion Forward | 2015 | 3ds |
| New Tropical Angel | 1983 | arcade |
| NewU Fitness First Mind Body - Yoga & Pilates Workout | 2010 | wii |
| NewU Fitness First Personal Trainer | 2009 | wii |
| Next Generation Tennis | 2002 | gba |
| Nice On | 1999 | ws |
| Nice Price Series Vol. 04 - Billiard King | 2002 | ps1 |
| Nice Price Series Vol. 07 - World Tournament Bowling | 2002 | ps1 |
| Nice de Shot | 1994 | snes |
| Nichibeikan Pro Yakyuu - Final League | 2002 | ps2 |
| Nick Faldo Championship Golf | | gb |
| Nick Faldo's Championship Golf | 1993 | genesis |
| Nick Faldos Championship Golf | 1994 | cd32 |
| Nickelodeon Fit | 2010 | wii |
| Nickelodeon GUTS | 1994 | snes |
| Nickelodeon Nicktoons MLB | 2011 | wii |
| Nicktoons MLB | 2011 | nds |
| Nicktoons MLB 3D | 2012 | 3ds |
| Nihon Curling Kyoukai Kounin - Minna no DS Curling | 2006 | nds |
| Nihon Daihyou Senshu ni Narou! | 2002 | ps2 |
| Nihon Daihyou Team - Eikou no Eleven | 1998 | gb |
| Nihon Daihyou Team France de Ganbare! - J.League Supporter Soccer | 1998 | gb |
| Nihon Pro Golf Kyoukai Kanshuu - Double Eagle | 1997 | ps1 |
| Nihon Pro Yakyuu Kikou Kounin - Pro Yakyuu Japan 2001 | 2001 | ps2 |
| Nihonichi no Mei Kantoku | 1990 | nes |
| Nijiiro Dodgeball - Otometachi no Seishun | 2002 | ps1 |
| Nike+ Kinect Training | 2012 | xbox360 |
| Nikkan Sports Pro Yakyuu VAN | 1991 | genesis |
| Nikudan | 2010 | ps3 |
| Ninja - Shadow of Darkness | 1996 | ps1 |
| Ninja Golf | 1990 | a7800 |
| Nintendo 3DS Guide - Louvre | 2013 | 3ds |
| Nintendo Pocket Football Club | 2014 | 3ds |
| Nintendo Presents - Style Boutique | 2009 | nds |
| Nintendo Presents - Style Boutique | 2016 | wiiu |
| Nintendo Switch Sports | 2022 | switch |
| Nintendo Touch Golf - Birdie Challenge | 2005 | nds |
| Nintendo World Cup | 1990 | arcade, gb, nes |
| Nintendo presents - New Style Boutique | 2012 | 3ds |
| Nintendo presents - New Style Boutique 3 - Styling Star | 2017 | 3ds |
| Nintendogs + Cats - Golden Retriever & New Friends | 2011 | 3ds |
| Nintendogs - Best Friends | 2005 | nds |
| Nintendogs - Dalmatian & Friends | 2006 | nds |
| Nintendogs - Jack Russell Relay Mode | | nds |
| Nintendogs - Lab & Friends | 2005 | nds |
| Nintendogs - Labrador & Friends | 2005 | nds |
| Nippon Futsal League Kounin - Minna no DS Futsal | 2008 | nds |
| No Fear - Downhill Mountain Biking | 2001 | gbc |
| No Fear Downhill Mountain Bike Racing | 1999 | ps1 |
| No Fear Downhill Mountain Biking | 1999 | ps1 |
| Nolan Ryan's Baseball | 1992 | snes |
| Nomo Hideo no World Series Baseball | 1995 | gg |
| North American Hunting Extravaganza | 2008 | wii |
| North American Hunting Extravaganza 2 | 2010 | wii |
| Numan Athletics | 1993 | arcade, wii |
| Nushi Zuri 64 | 1998 | n64 |
| Nushi Zuri 64 - Shiokaze ni Notte | 2000 | n64 |
| O'Leary Manager 2000 | 2000 | gbc |
| Obut Petanque | 2011 | ps3 |
| Obut Petanque 2 | 2012 | ps3 |
| Obut Petanque 2 | 2014 | xbox360 |
| Ocean Beach Volley | 2021 | genesis |
| Oishinbo - DS Recipe Shuu | 2007 | nds |
| Okamoto Ayako no Match Play Golf | 1984 | sg1000 |
| Okamoto Ayako to Match Play Golf - Ko Olina Golf Club in Hawaii | 1994 | snes |
| Okappari-ou | 1998 | ps1 |
| Okiraku Air Hockey Wii | 2009 | wii |
| Okiraku Ping Pong Wii | | wii |
| Okiraku Putter Golf Wii | 2009 | wii |
| Okiraku Tennis SP | 2014 | wiiu |
| Okiraku Tennis Wii | 2009 | wii |
| OlliOlli | 2014 | ps3, ps4, vita, wiiu |
| OlliOlli | 2015 | xboxone |
| OlliOlli World | 2022 | switch |
| OlliOlli2: Welcome to Olliwood | 2015 | ps4, vita, xboxone |
| Ollie King | 2003 | arcade |
| Olympic Games | 1996 | ps1 |
| Olympic Games Tokyo 2020 - The Official Video Game | 2019 | ps4, switch |
| Olympic Games Tokyo 2020 - The Official Video Game | 2021 | xboxone |
| Olympic Gold | 1992 | genesis, gg, sms |
| Olympic Hockey 98 | 1998 | n64 |
| Olympic Soccer | 1996 | 3do |
| Olympic Soccer | 1996 | ps1, saturn |
| Olympic Soccer '92 | 1992 | arcade |
| Olympic Summer Games | 1996 | 3do, gb, genesis, ps1, snes |
| Olympic Trials | 1992 | svision |
| Omatsuri Yasan: Ganso Takoyaki | 2009 | arcade |
| Omatsuri Yasan: Kingyo Sukui | 2009 | arcade |
| OnSide Soccer | | 3do |
| One Piece - Going Baseball - Haejeok Yaku | 2004 | gba |