| Green slaad | 8 | Aberration (shapechanger) | Large | 16 | 127 | | chaotic neutral | | Monster Manual | | | | | | |
| Green hag | 3 | Fey | Medium | 17 | 82 | | neutral evil | | Monster Manual (SRD) | 18 | 12 | 16 | 13 | 14 | 14 |
| Green dragon wyrmling | 2 | Dragon | Medium | 17 | 38 | fly, swim | lawful evil | | Monster Manual (SRD) | 15 | 12 | 13 | 14 | 11 | 13 |
| Green abishai | 15 | Fiend (devil) | Medium | 18 | 187 | fly | lawful evil | | Mordenkainen's Tome of Foes | | | | | | |
| Graz zt | 24 | Fiend (demon, shapechanger) | Large | 20 | 346 | | chaotic evil | | Mordenkainen's Tome of Foes | | | | | | |
| Gray slaad | 9 | Aberration (shapechanger) | Medium | 18 | 127 | | chaotic neutral | | Monster Manual | | | | | | |
| Gray render | 12 | Monstrosity | Large | 19 | 189 | | chaotic neutral | | Mordenkainen's Tome of Foes | | | | | | |
| Gray ooze | 0.5 | Ooze | Medium | 8 | 22 | | unaligned | | Monster Manual (SRD) | 12 | 6 | 16 | 1 | 6 | 2 |
| Goristro | 17 | Fiend (demon) | Huge | 19 | 310 | | chaotic evil | | Monster Manual | | | | | | |
| Gorgon | 5 | Monstrosity | Large | 19 | 114 | | unaligned | | Monster Manual (SRD) | 20 | 11 | 18 | 2 | 12 | 7 |
| Gold dragon wyrmling | 3 | Dragon | Medium | 17 | 60 | fly, swim | lawful good | | Monster Manual (SRD) | 19 | 14 | 17 | 14 | 11 | 16 |
| Goblin boss | 1 | Humanoid (goblinoid) | Small | 17 | 21 | | neutral evil | | Monster Manual | | | | | | |
| Goblin | 0.25 | Humanoid (goblinoid) | Small | 15 | 7 | | neutral evil | | Monster Manual (SRD) | 8 | 14 | 10 | 10 | 8 | 8 |
| Goat | 0 | Beast | Medium | 10 | 4 | | unaligned | | Monster Manual (SRD) | 12 | 10 | 11 | 2 | 10 | 5 |
| Gnoll witherling | 0.25 | Undead | Medium | 12 | 11 | | chaotic evil | | Volo's Guide to Monsters | | | | | | |
| Gnoll pack lord | 2 | Humanoid (gnoll) | Medium | 15 | 49 | | chaotic evil | | Monster Manual (BR) | 16 | 14 | 13 | 8 | 11 | 9 |
| Gnoll hunter | 0.5 | Humanoid (gnoll) | Medium | 13 | 22 | | chaotic evil | | Volo's Guide to Monsters | | | | | | |
| Gnoll flesh gnawer | 1 | Humanoid (gnoll) | Medium | 14 | 22 | | chaotic evil | | Volo's Guide to Monsters | | | | | | |
| Gnoll fang of yeenoghu | 4 | Fiend (gnoll) | Medium | 14 | 65 | | chaotic evil | | Monster Manual | | | | | | |
| Gnoll | 0.5 | Humanoid (gnoll) | Medium | 15 | 22 | | chaotic evil | | Monster Manual (SRD) | 14 | 12 | 11 | 6 | 10 | 7 |
| Gloom weaver | 9 | Humanoid (elf) | Medium | 14 | 104 | | neutral | | Mordenkainen's Tome of Foes | | | | | | |
| Gladiator | 5 | Humanoid (any race) | Medium | 16 | 112 | | any alignment | | Monster Manual (SRD) | 18 | 15 | 16 | 10 | 12 | 15 |
| Glabrezu | 9 | Fiend (demon) | Large | 17 | 157 | | chaotic evil | | Monster Manual (SRD) | 20 | 15 | 21 | 19 | 17 | 16 |
| Githzerai zerth | 6 | Humanoid (gith) | Medium | 17 | 84 | | lawful neutral | | Monster Manual | | | | | | |
| Githzerai monk | 2 | Humanoid (gith) | Medium | 14 | 38 | | lawful neutral | | Monster Manual | | | | | | |