| Magazine/edition title | # of issues | Code | Notes |
| G-8 and his Battle Aces |
110
|
GBA
|
|
| Galaxy Magazine |
-
|
-
|
VT of Galaxy SF - see GXY |
| Galaxy Novels |
46
|
GXYN
|
|
| Galaxy Science Fiction |
262
|
GXY
|
|
| Galaxy Science Fiction 1st UK edn |
94
|
pub Strato 1953-62 | |
| Galaxy Science Fiction 2ndUK edn |
5
|
pub Gold Star 1967 | |
| Galaxy Science Fiction 3rd UK edn |
13
|
pub Tandem 1969-70 | |
| Galaxy Science Fiction 4th UK edn |
27
|
pub Tandem 1972-75 | |
| Galileo |
15
|
GAL
|
|
| Gamma |
5
|
GAM
|
|
| Ghost Stories |
64
|
GHS
|
|
| Great Science Fiction |
21
|
GSF
|
|
| Great Science Fiction Stories |
-
|
-
|
VT of Treasury of Great SF Stories, see TGS |
| Hidden World, The |
16
|
HDW
|
|
| Horror Stories |
41
|
HOR
|
|
| Horror Stories (UK reprint) |
4
|
||
| If Worlds of Science Fiction |
176
|
WIF
|
|
| If Worlds of Science Fiction 1st UK edn |
15
|
pub Strato 1953-54 | |
| If Worlds of Science Fiction 2nd UK edn |
18
|
pub Srato 1959-60 | |
| If Worlds of Science Fiction 3rd UK edn |
9
|
pub Gold Star 1966-67 | |
| If Worlds of Science Fiction 4th UK edn |
9
|
pub Universal Tandem 1969-70 | |
| If Worlds of Science Fiction 5th UK edn |
15
|
pub UPD 1972-74 | |
| Imagination |
63
|
||
| Imagination Science Fiction |
-
|
-
|
VT ofImagination - see IMG |
| Imaginative Tales |
26
|
||
| Impulse |
-
|
-
|
VT of Science-Fantasy - see SFY |
| Infinity Science Fiction |
20
|
INF
|
|
| International Science Fiction |
2
|
INT
|
|
| Interzone |
197
|
Current - issues to Mar/Apr 2005 | |
| Isaac Asimov's Science Fiction Adventure Magazine |
4
|
IASD
|
|
| Isaac Asimov's Science Fiction Anthology |
8
|
IASN
|
|
| Isaac Asimov's Science Fiction Magazine |
306
|
IAS
|
|
| Jungle Stories |
59
|
JUNB
|
pub Glen-Kel 1939-54 |
| Jungle Stories |
3
|
JUNA
|
pub Clayton 1931 |
| Jungle Stories UK edn |
5
|
JUNB1
|
|
| Ka-Zar |
3
|
KAZ
|