| Sinclair ZX Spectrum cass. |  Grail | 1983 | Severn Soft. |
| Sinclair ZX Spectrum cass. | Grand National | 1983 | CRL Group PLC London, England |
| Sinclair ZX Spectrum cass. | Grand Prix + Rally Z | 1983 | Contrast Soft. |
| Sinclair ZX Spectrum cass. | Grand Prix Driver | 1983 | Britannia Soft., Ltd. |
| Sinclair ZX Spectrum cass. | Granny's Garden | 1983 | 4Mation Educational Resources UK |
| Sinclair ZX Spectrum cass. | Grasp | 1983 | Camel Micros |
| Sinclair ZX Spectrum cass. | Greedy Gulch Model PA 503 | 1983 | Phipps Associates |
| Sinclair ZX Spectrum cass. | Grid-Bug Model S008 | 1983 | Add On Electronics, Ltd. |
| Sinclair ZX Spectrum cass. | Grid-Run + Pontoon | 1983 | Arcade Soft. |
| Sinclair ZX Spectrum cass. | GridMaster | 1983 | Procom Soft. |
| Sinclair ZX Spectrum cass. | Gridrunner Model QSP 0054 | 1983 | Quicksilva |
| Sinclair ZX Spectrum cass. | Gun Law | 1983 | Vortex Soft., Ltd. England |
| Sinclair ZX Spectrum cass. | Halls of the Things | 1983 | Crystal Computing |
| Sinclair ZX Spectrum cass. | Halls of the Things | 1983 | Design Design Soft. |
| Sinclair ZX Spectrum cass. | Hanoi King | 1983 | Contrast Soft. |
| Sinclair ZX Spectrum cass. | Hard Cheese Model DK 017 | 1983 | DK Tronics |
| Sinclair ZX Spectrum cass. | Harrier Attack! | 1983 | Durell Soft. |
| Sinclair ZX Spectrum cass. | Harrier Attack! | 1983 | Orion Portugal |
| Sinclair ZX Spectrum cass. | Haunted Hedges + Waxworks | 1983 | Dixons |
| Sinclair ZX Spectrum cass. | Haunted Hedges Model QTC 722 | 1983 | Micromega |
| Sinclair ZX Spectrum cass. | Haunted House | 1983 | C&VG |
| Sinclair ZX Spectrum cass. | Haunted House Adventure | 1983 | Usborne Publishing |
| Sinclair ZX Spectrum cass. | Hawkes | 1983 | Lotus-Soft |
| Sinclair ZX Spectrum cass. |  Hawks | 1983 | King Soft. |
| Sinclair ZX Spectrum cass. | Headbangers Heaven | 1983 | Llamasoft |
| Sinclair ZX Spectrum cass. | Heathrow Air Traffic Control | 1983 | Hewson Consultants, Ltd. England 012635 |
| Sinclair ZX Spectrum cass. | Heathrow International Air Traffic Control | 1983 | Hewson Consultants, Ltd. England 012635 |
| Sinclair ZX Spectrum cass. | Here Comes the Sun | 1983 | Alligata Soft. |
| Sinclair ZX Spectrum cass. | Hicksted & Mathsted | 1983 | CCS Cases Computer Simulations, Ltd. London, England |
| Sinclair ZX Spectrum cass. | Hidden City | 1983 | Bytewell |
| Sinclair ZX Spectrum cass. | Hidden Letters | 1983 | Poppy Soft |
| Sinclair ZX Spectrum cass. | High Noon | 1983 | Work Force |
| Sinclair ZX Spectrum cass. | Highrise Harry | 1983 | Blaby Computer Games |
| Sinclair ZX Spectrum cass. | Hopper | 1983 | Soft & Easy |
| Sinclair ZX Spectrum cass. | Hopper Model 019 | 1983 | PSS Personal Soft. Services 012484 |
| Sinclair ZX Spectrum cass. | Horace & the Spiders Model G24/S | 1983 | Sinclair Research, Ltd. |
| Sinclair ZX Spectrum cass. | Horacio Esquiador | 1983 | Investronica Spain |
| Sinclair ZX Spectrum cass. | Horror Atoll | 1983 | Kayde Soft. |
| Sinclair ZX Spectrum cass. | Hot Dot Spotter | 1983 | Longman Soft. |
| Sinclair ZX Spectrum cass. | Hotfoot | 1983 | Microsphere Computer Services, Ltd. |
