| Atari 2600 cart. |  Kick-Man | 1983 | CBS, Inc. |
| Atari 2600 cart. |  King Arthur | 1983 | Quelle |
| Atari 2600 cart. | King Kong Model 7-001 | 1982 | Tigervision Tiger Electronic Toys, Inc. Orchard Mundelein, IL, USA |
| Atari 2600 cart. |  King Kong PAL Model 7-001 | 1982 | Tigervision Tiger Electronic Toys, Inc. Orchard Mundelein, IL, USA |
| Atari 2600 cart. | Klax Model CX26192 | 1990 | Atari Corp. CA, USA |
| Atari 2600 cart. | Klax NTSC Prototype | 1990 | Atari Corp. CA, USA |
| Atari 2600 cart. | Knight on the Town 18 | 1982 | Mystique CA, USA |
| Atari 2600 cart. | Kommando Galaxis Model 711 016-725 | 1982 | Ariolasoft Germany |
| Atari 2600 cart. | Kool-Aid Man Model MT4648 | 1983 | M Network Mattel Electronics Hawthorne, California, USA |
| Atari 2600 cart. | Krull | 19?? | CCE Soft. Brazil |
| Atari 2600 cart. | Krull Model CX2682 | 1983 | Atari, Inc. CA, USA |
| Atari 2600 cart. | Kung Fu | 1983 | Bit Corp. |
| Atari 2600 cart. |  Kung Fu Superkicks - Pursuit of the Ninja Model 6082 A145 | 1987 | Telegames, Inc. TX, USA |
| Atari 2600 cart. | Kung-Fu Master | 1987 | CCE Soft. Brazil |
| Atari 2600 cart. | Kung-Fu Master Model AG-039 P | 1987 | Activision, Inc. Mountain View, CA, USA 47875 |
| Atari 2600 cart. | Kung-Fu Master Model EAX-039-04B | 1987 | Activision, Inc. Mountain View, CA, USA 47875 |
| Atari 2600 cart. | Kwibble | 1983 | Imagic, Inc. Los Gatos, CA, USA |
| Atari 2600 cart. | Kyphus Model AP2007 | 1982 | Apollo, Inc. Richardson, TX, USA |
| Atari 2600 cart. | La Valise Piégée Model AP 2004 | 1983 | RCA Video Jeux France |
| Atari 2600 cart. | Labirinto Louco | 1980 | Polyvox Brazil |
| Atari 2600 cart. | Labyrint Model 83-411 | 1983 | Goliath |
| Atari 2600 cart. | Labyrinth Model 805.784 6 | 1983 | Quelle |
| Atari 2600 cart. | Lady in Wading 18 | 1982 | Mystique CA, USA |
| Atari 2600 cart. | Landung in der Normandie Model 876.482 1 | 1983 | Quelle |
| Atari 2600 cart. | Landungskommando Model 176.433 1 | 1983 | Quelle |
| Atari 2600 cart. | Laser Base Model 554-33 367 | 1983 | ITT Family Games |
| Atari 2600 cart. | Laser Blast | 19?? | CCE Soft. Brazil |
| Atari 2600 cart. | Laser Blast Model AG-008 | 1981 | Activision, Inc. Santa Clara, CA, USA 47875 |
| Atari 2600 cart. | Laser Blast Model EAG-008 | 1982 | Activision, Inc. Santa Clara, CA, USA 47875 |
| Atari 2600 cart. | Laser Blast Model PAG-008 | 1981 | Activision, Inc. Santa Clara, CA, USA 47875 |
| Atari 2600 cart. | Laser Gate | 19?? | Future Video Games |
| Atari 2600 cart. | Laser Gate Model C-860 | 1983 | CCE Soft. Brazil |
| Atari 2600 cart. | Laser Gates Model 03208 | 1983 | Imagic, Inc. Los Gatos, CA, USA |
| Atari 2600 cart. | Laser Gates Model 13208 | 1983 | Imagic, Inc. Los Gatos, CA, USA |
| Atari 2600 cart. | Laser Gates Model EIX-007-04I | 1983 | Imagic, Inc. Los Gatos, CA, USA |
| Atari 2600 cart. | Laser Volley | 198? | Zellers, Inc. Montreal, Quebec |
| Atari 2600 cart. | Laser-Loop Model DY-192003 | 1983 | Dynamics |
| Atari 2600 cart. | Lasercade Model 11037 | 1983 | Fox Video Games, Inc. 20th Century Fox Santa Clara, CA, USA |
| Atari 2600 cart. | Lasso-Helden Model 711 011-715 | 1981 | Ariolasoft Germany |
| Atari 2600 cart. | Le Tunnel de L'Estace Model PG202 | 1982 | Puzzy |
