| Nintendo Famicom cart. |  Ji Dou Sheng Zhan Shi Model ES-1117 | 19?? | Waixing Computer & Technology Co., Ltd. China |
| Nintendo Famicom cart. | Ji Du Shan En Chou Ji - Le Comte De Monte-Cristo | 19?? | Waixing Computer & Technology Co., Ltd. China |
| Nintendo Famicom cart. | Ji Jia Zhan Shi | 1996 | XianFeng Katong China |
| Nintendo Famicom cart. | Ji Jia Zhan Shi III Model KT-1010 | 199? | Shenzhen Jincota Technology Co., Ltd. China |
| Nintendo Famicom cart. | Ji Zhan Fu Li Sa Zhi Sun Wu Fan Model ES-1094 | 19?? | Waixing Computer & Technology Co., Ltd. China |
| Nintendo Famicom cart. | Jia A - China soccer league for division A Model ES-1045 | 19?? | Waixing Computer & Technology Co., Ltd. China |
| Nintendo Famicom cart. | Jian Xia Qing Yuan Model KT-1020 | 19?? | Shenzhen Jincota Technology Co., Ltd. China |
| Nintendo Famicom cart. | Jigoku Gokuraku Maru Model PAC-9Z | 1990 | Pack-In-Video Co., Ltd. Japan |
| Nintendo Famicom cart. | Jikuu Yuuden - Debias | 1987 | NAMCOT Japan |
| Nintendo Famicom cart. | Jin Gwok Sei Chuen Saang | 1990 | Computer & Ent. Taiwan |
| Nintendo Famicom cart. | Jin Yong Qun Xia Zhuan - Shu Jian Jiang Shan Model NJ031 | 200? | Shenzhen Nanjing Technology Co., Ltd. China |
| Nintendo Famicom cart. | Jing Hua Yuan Model ES-1033 | 19?? | Waixing Computer & Technology Co., Ltd. China |
| Nintendo Famicom cart. | Jing Ke Xin Zhuan Model KT-1001 | 199? | Shenzhen Jincota Technology Co., Ltd. China |
| Nintendo Famicom cart. | Jing Ke Xin Zhuan Model S-01 | 1992 | Supertone China |
| Nintendo Famicom cart. | Jing Wei Tian Hai | 2003 | HengGedianzi China |
| Nintendo Famicom cart. | Jisuanqi | 19?? | Unknown China |
| Nintendo Famicom cart. | JJ Tobidase Daisakusen Part 2 Model SQF-JJ | 1987 | Square Co., Ltd. Japan |
| Nintendo Famicom cart. | Jongbou Model KAC-JB | 1987 | KAC K.Amusement Lising Co. Japan |
| Nintendo Famicom cart. | Joust Model HAL-JU P | 1987 | HAL Laboratory, Inc. Japan |
| Nintendo Famicom cart. | Jovial Race Model TC-001 | 1989 | Sachen Thin Chen co. Taiwan |
| Nintendo Famicom cart. | Joy Mech Fight Model HVC-JM | 1993 | Nintendo Co., Ltd. Japan |
| Nintendo Famicom cart. | Jue Dai Shuang Jiao Model NJ060 | 200? | Shenzhen Nanjing Technology Co., Ltd. China |
| Nintendo Famicom cart. | Jue Dai Ying Xiong Model ES-1022 | 19?? | Waixing Computer & Technology Co., Ltd. China |
| Nintendo Famicom cart. | Jue Zhan Tai Ping Yang Model ES-1025 | 199? | Waixing Computer & Technology Co., Ltd. China |
| Nintendo Famicom cart. | JuJu Densetsu Model DTF-5J P | 1991 | Taito Corp. Japan |
| Nintendo Famicom cart. | Jumbo Ozaki no Hole in One Professional Model HAL-JO | 1988 | HAL Laboratory, Inc. Japan |
| Nintendo Famicom cart. | Jumpin' Kid - Jack to Mame no Ki Monogatari Model ASM-J9 | 1990 | Asmik Co., Ltd. Japan |
| Nintendo Famicom cart. |  Jungle Taitei | 1990 | Taito Corp. Japan |
| Nintendo Famicom cart. | Jurassic Boy 2 Model TC-028 | 1994 | Sachen Thin Chen co. Taiwan |
| Nintendo Famicom cart. | JustBreed Model EFC-I5 | 1992 | Enix, Ltd. Japan |
| Nintendo Famicom cart. | Juuouki Model ASM-9J P | 1990 | Asmik Co., Ltd. Japan |
| Nintendo Famicom cart. | Juuryoku Soukou Metal Storm Model IF-21 | 1992 | Irem Corp. Japan |
| Nintendo Famicom cart. | Juvei Quest Model NAM-FJQ-7800 | 1991 | NAMCOT Japan |
| Nintendo Famicom cart. | Kabushiki Doujou Model HCT-DZ/003 | 1989 | HECT Hector Japan |
| Nintendo Famicom cart. | Kaettekita! Gunjin Shougi - Nanya Sore!? Model SFL-NS | 1989 | SOFEL Co., Ltd. Japan |
| Nintendo Famicom cart. | Kage no Densetsu Model TFC-KD-4900 P | 1986 | Taito Corp. Japan |
| Nintendo Famicom cart. | Kagerou Densetsu Model PIX-XA-01 | 1990 | Pixel Technologies |
| Nintendo Famicom cart. | Kaguya Hime Densetsu Model VFR-K1 | 1988 | Victor Musical Industries, Inc. Japan |
| Nintendo Famicom cart. | Kaijuu Monogatari Model NAM-KM-5500 | 1988 | NAMCOT Japan |
| Nintendo Famicom cart. | Kaiketsu Yanchamaru 2 - Karakuri Land Model IF-22 | 1991 | Irem Corp. Japan |
